You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I have to cancel my previous flight ticket booking due to some issues, can you please help me in flight ticket cancellation process?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Just give a moment.

USER: Sure.

ASSISTANT: May I know your name please.

USER: My name is Patricia Lee.

ASSISTANT: Sorry, I did not found any reservation on your name in our database.

USER: No problem with that one, thank you for your search and providing the information.

ASSISTANT: Thank you for opting us.

USER: Welcome.