You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: Sure, I am here to help you with that. Can I know your name to proceed?

USER: Thank you for your response, my name is Jack Evans.

ASSISTANT: Please wait for a moment to check your recent reservation details.

USER: Ok.

ASSISTANT: Sorry to say, there is no reservation found on your name in my records.

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

ASSISTANT: Thank you for reaching us, have a nice day.