You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, will you please mention your name for checking the reservation status?

USER: Ok, my name is Patrick Parker.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no reservation found under your name.

USER: Ok, not a problem. Thank you.

ASSISTANT: Welcome, have a great day.