You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I serve you?

USER: I am George Lee, help me to book a flight from CA-SFO to CA-OAK.

ASSISTANT: Sure, I will be happy to serve you. May I know your departure and arrival dates please?

USER: I will fly on 09/20 and return on 09/22.

ASSISTANT: Do you need any connection limit?

USER: I need a single connection in between the journey.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a flight found with AA airline of flight number 1021 with price 100.

USER: Please proceed with booking.

ASSISTANT: Your seat has been reserved. Thank you for availing us.

USER: Thank you for booking my ticket.