You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: My name is Brandon Lee.

ASSISTANT: Ok.

USER:   I was fallen sick due to bad weather here in my area. So I would like to cancel my current reservation.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for approaching us.