You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Virginia Davis, could you help me with booking from PHX to SEA?

ASSISTANT: Sure, I am here to help you with that. May I know your travelling dates to proceed further?

USER: Sure, my planned dates should be 11/28 and 11/30.

ASSISTANT: Ok, please be on hold.

USER: Ok, take your time.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for approaching us.