You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am going to buy a new house at San Francisco, can you book a ticket for me?

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

USER: Sure, I am planning to take leave from 11/18 to 11/20, so take those dates into consideration for your booking.

ASSISTANT: Ok, may I know the unique airport codes please?

USER: Yes, I am seeing for the flights from LAX to SFO.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Ok, ensure that connection limit is 1.

ASSISTANT: I found a flight for you with AA airline and it costs you 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: On whose name I would like to book this ticket?

USER: Book the ticket under the name Jennifer Smith.

ASSISTANT: Your ticket has been booked with 1007 flight number Smith.

USER: Thank you for booking.

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

USER: Welcome.