You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Roberts.

ASSISTANT: How can I help you?

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

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry we didn't find any reservation on your name.

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

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