You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Deborah Mitchell. I want to change my existing reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: I am here to help you, wait for a while.

USER: Sure, take your time.

ASSISTANT: Thanks for your time, there is no reservation found on your name to change it.

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

ASSISTANT: Thanks for consulting us.