You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to my ill health, I couldn't make my trip to Dallas. Can you please help me by cancelling my recent reservation?

ASSISTANT: Sure, can I have your name to check your reservation status?

USER: My previous reservation has done with the name Virginia Green.

ASSISTANT: Please be on hold, Green. There is no reservation found on your name, Green.

USER: Ok, not an issue. May be my brother has already cancelled my reservation on behalf of me.

ASSISTANT: Yes, may be.

USER: Thank you for providing information.

ASSISTANT: Welcome, thank you for reaching us.