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, I'm glad to help you in that. May I know your good name please?

USER: Thank you for your response, my name is Matthew Gonzalez.

ASSISTANT: Ok, please let me check your reservation status first.

USER: Ok, take your time.

ASSISTANT: Matthew Gonzalez, there is no active reservation found under your name to do modifications in that.

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

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