You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can  guide you?

USER: I am unable to cancel my ticket booking due to network issues in my home town, can you please cancel my ticket booking?

ASSISTANT: Sure, may I know your good name please?

USER: Yes, my name is Michael Lee.

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

USER: Ok, that's fine, I think it might be cancelled by my brother. Anyways, thank you for your help.

ASSISTANT: Thank you for approaching us.