Add booking command rejects valid input

[samuelim01]

Description

According to the user guide,

The domain name must end with a domain label that is supported: gmail, yahoo, outlook, hotmail, icloud.

However, an email with the domain name yahoo.com.sg is not accepted by the application

Steps to reproduce

• Execute add r/5 d/2023-01-01 08:00 to 2023-01-02 23:00 n/John Tan p/98765432 e/johnd@yahoo.com.sg

Expected outcome

• Booking should be added

Actual outcome

• Error given

Platform

• Windows 11

Screenshot(s)

[nus-pe-bot]

Team's Response

The issue is with the phrasing in the documentation as a valid domain considered by our team is yahoo.com and not yahoo.com.sg

Items for the Tester to Verify

:question: Issue type

Team chose [type.DocumentationBug] Originally [type.FunctionalityBug]

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

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## :question: Issue severity Team chose [`severity.VeryLow`] Originally [`severity.Low`] - [x] I disagree **Reason for disagreement:** Unfortunately, I disagree that this issue is `severity.VeryLow`. `severity.VeryLow` is for purely cosmetic issues that do not affect usage. In this case, it does affect the usage because what was specified to be supported (`yahoo` domains) was not supported in all cases. I believe this is not an issue of extreme user behavior, because many people do use `yahoo.com.sg`. Hence, I believe this should be of `severity.Low` instead.

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