You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation, as most of my friends are not coming for the vacation. Can you please help me with this?

ASSISTANT: Sure, please provide your name so that I can help you easily.

USER: I am Paul Davis.

ASSISTANT: Thanks for giving your name, there is no reservation with your name.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thanks for contacting us.