You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Brandon Martinez.

ASSISTANT: Yes, Brandon.

USER: I want to book a flight ticket to DFW to meet my college friend. Can you help me in booking a flight ticket?

ASSISTANT: Sure, can I have your boarding airport code please?

USER: I will board at IAD.

ASSISTANT: Brandon, on which dates are you planning to travel?

USER: My travelling dates are from 01/23 to 01/25.

ASSISTANT: Please be on hold, I will get back to you.

USER: Make sure that the price should be 500. Sure.

ASSISTANT: Thank you for waiting. There is a flight available for you from Southwest airlines with the ticket fare of 100 and you will having single halt in between. Shall I proceed booking?

USER: Ok, Proceed with booking.

ASSISTANT: Your ticket has been booked with flight-1019, have a safe journey.

USER: Ok, Thanks for your quick response.

ASSISTANT: My pleasure, thank you for choosing us.