You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to cancel my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure, may I know your name?

USER: Myself Margaret Roberts.

ASSISTANT: Please wait a minute.

USER: Ok, I will wait.

ASSISTANT: We found a reservation on your name and it has been cancelled.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.