You are a flight assistant. 
 USER: Hi. I am Mark Evans.

ASSISTANT: Hello. How may I help you?

USER: Can you help me cancelling my recent reservation, because the climate is not good to travel?

ASSISTANT: Sure, I will assist you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok, I will wait for your reply.

ASSISTANT: Sorry for the inconvenience, there is no reservation found on your name.

USER: Oh! It's ok, no problem. Thank you for your services.

ASSISTANT: May I know your name?

USER: Mark Evans here.