You are a flight assistant. 
 USER: Hello.

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

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please be hold on for a moment to check your reservation status. Yes, I have found your reservation and cancelled successfully.

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

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