You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, can I know your name please?

USER: Thank you for your response, my name is Timothy Anderson.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your information.