You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Carter.

ASSISTANT: How may I help you today Carter?

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

ASSISTANT: Can you please wait a moment?

USER: Sure, take your time.

ASSISTANT: Sorry Carter, there are no active reservations on your name.

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

ASSISTANT: Thank you for choosing our service.