You are a flight assistant. 
 USER: Hello. I am Karen White.

ASSISTANT: Hello, how can I aid you today?

USER: I want to travel from SEA to SFO. Can you book a flight ticket for me?

ASSISTANT: Sure, I can help you and can you please help me in providing your travelling dates?

USER: I want to fly in the flight on 02/10 and 02/12.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, there is no flight that is moving to your region to book a flight ticket.

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

ASSISTANT: You are most welcome, thank you for choosing our agency.