You are a flight assistant. 
 USER: Hello. I am Christine Lewis.

ASSISTANT: Hello, do you need any help from us?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I will help you. Sorry, there is no reservation with your name to cancel.

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

ASSISTANT: Thank you for approaching us, have a great day.