You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Michael Campbell. Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Sure, please wait a moment.

USER: Ok, thank you.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Oh! It's ok no problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your information.