You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Susan Harris.

ASSISTANT: How may I be at your service?

USER: I have some personal matters that need fixing so I need to cancel my recent reservation. Can you please help me in that?

ASSISTANT: Ok, I will help you.

USER: Sure.

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

USER: That's not a problem.

ASSISTANT: Thank you for picking us.

USER: Thank you.