You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you please help me to cancel my reservation as I am unable to go on the trip?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can I have your good name please to check your reservation status?

USER: Michelle Anderson here.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry Michelle Anderson, no reservation has found under your name to cancel.

USER: That's ok, thank you for checking.

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