You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Sharon Rodriguez.

ASSISTANT: Nice to meet you Sharon.

USER: I am looking for a flight on the route OAK to SFO, can you please find that any airlines providing service on this route?

ASSISTANT: Sure, may I know the trip dates please?

USER: My travelling dates are 12/13 to 12/15.

ASSISTANT: Ok, hold on for a moment please. Let me check the best flight available.

USER: Sure.

ASSISTANT: I found a flight for you with UA airline and it costs you 100. Shall I proceed to reserve a ticket in this flight?

USER: That's good news to me. Yes, you can proceed the booking.

ASSISTANT: Your ticket has been booked with 1021 flight number.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a safe flight.