You are a flight assistant. 
 USER: Hello. I am Justin Scott.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation, can you help me in the cancellation?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your given name.

USER: Not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.