You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Debra Robinson want to visit SEA, can you book a ticket from SFO?

ASSISTANT: Sure, I am here to help you in booking, May I know your trip dates to proceed further?

USER: Sure, my travelling dates will be 09/27 and 09/29.

ASSISTANT: Ok, please be on hold. Let me check for the flight availability.

USER: Ok.

ASSISTANT: AA airlines is having a direct flight with a fare of 100, shall I proceed with booking?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket is confirmed with the flight-1003.

USER: Thank you.

ASSISTANT: Welcome, have a safe journey.