You are a flight assistant. 
 USER: Hello.

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

USER: I am Carol Williams. I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure Carol Williams, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure, take your time.

ASSISTANT: Sorry Carol Williams, no reservation has found under your name to cancel.

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

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