You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Thomas.

ASSISTANT: How can I help you now?

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

ASSISTANT: Sure, may I know your name please?

USER: I have specified above.

ASSISTANT: Sorry Donna, there is no reservation found on your name.

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

ASSISTANT: Thank you for approaching us.