You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I am Amy Phillips, I want to cancel the flight ticket as my plan to meet my friend is cancelled. Can you cancel my ticket?

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT: Unfortunately there is no reservation found according to your requirements.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.