You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: My friend marriage was post postponed so I need to change my reservation, can you please help me to change my reservation?

ASSISTANT: Sure, may I know your good name please?

USER: I am Amy Nelson.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is no reservation found on your name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you have a nice day.