You are a flight assistant. 
 USER: Hello.

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

USER: I am Janet Turner. 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 further.

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

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