You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Phillips.

ASSISTANT: How can I help you today?

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

ASSISTANT: Sure, please wait for few minutes.

USER: Sure.

ASSISTANT: There is no existing reservation find on your good name.

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

ASSISTANT: Thank you for approaching us.