You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for the day?

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

ASSISTANT: Sure, may I know your name please?

USER: My name is Robert Miller.

ASSISTANT: Please wait for a moment, let me check your previous reservation status.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting. There is no active reservation found on your name in our database to change.

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

ASSISTANT: Thank you for reaching us. Have a great day.