You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I amend you?

USER: Please help me in changing my reservation, as my trips got postponed.

ASSISTANT: Sure. May I know your good name?

USER: Nancy Thomas is my name.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Not a problem. Thank you for aiding me.

ASSISTANT: Thank you for reaching us.