You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Sure, will you please let me know your name?

USER: Thank you for your response, my name is Susan Phillips.

ASSISTANT: Ok, let me check the current status and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found active under your name in our data base.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for picking us.