You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

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

ASSISTANT: Ok, I am here to help you with that.

USER: Thank you for your response.

ASSISTANT: May I know your good name?

USER: Sure, my name is Angela Thompson.

ASSISTANT: Ok, wait for a minute.

USER: Ok.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

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

ASSISTANT: Thank you for reaching us.