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

ASSISTANT: Hello. Justin Thomas, how can I help you today?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, let me check.

USER: Ok.

ASSISTANT: Sorry we couldn't found any reservation by your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.