You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend a Seminar at Denver, can you help me with booking?

ASSISTANT: Sure, may I know your source airport code please?

USER: My source airport code is DCA.

ASSISTANT: Please mention your travelling dates.

USER: My travelling dates are Aug 16 and Aug 18.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Can I know your name please?

USER: I am Brian Garcia.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in Southwest airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket is booked with the flight number 1008.

USER: Thank you.

ASSISTANT: Most welcome.