You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kimberly Phillips.

ASSISTANT: How may I assist you?

USER: I am planning to change my previous reservation, due to heavy rainfall in Seattle, can you help me in changing my reservation?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Kimberly, no reservation has been found on your name in our database.

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

ASSISTANT: Thank you for choosing us.