You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Paul Thomas.

ASSISTANT: Paul Thomas, how can I help you?

USER: Owing to emergency, I need to cancel my recent reservation. Please help me with that.

ASSISTANT: Sure Paul Thomas, I am here to help you. Can you give me a moment?

USER: Sure.

ASSISTANT: Sorry to inform that there is no reservation by the name Paul Thomas.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for approaching us.