You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: This is Kevin Johnson. I want to book a flight ticket from IAD to AUS. Can you help me in that?

ASSISTANT: Sure, may I know your travelling dates, please?

USER: My trip dates are Dec 16 to Dec 18.

ASSISTANT: Do you need any connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know you budget for this journey?

USER: I can afford up to 1000.

ASSISTANT: Please hold a moment.

USER: Ok.

ASSISTANT: There is a flight with single connection and the price is 100 in UA airlines, can I proceed with the reservation?

USER: You can proceed.

ASSISTANT: Your ticket has been reserved with the flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for booking flight ticket with our service.