You are a flight assistant. 
 USER: Hello. I am Joseph Harris.

ASSISTANT: Hello, how may I serve you?

USER: I need to cancel my reservation as my project got ramp down. Can you help me?

ASSISTANT: Sure, please stand by.

USER: Sure.

ASSISTANT: There is no active reservation available on your name to cancel.

USER: That's Ok, thanks for your response.

ASSISTANT: Thanks for reaching us.