You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, which service are you seeking for today?

USER: Could you please book a flight ticket from DCA to HOU?

ASSISTANT: Sure, can I know your good name please?

USER: I am Brenda Scott.

ASSISTANT:  When you are willing to travel?

USER: My travelling dates are Oct 22 and Oct 24.

ASSISTANT: Which flight you have preferred to travel either a connecting flight or a direct flight?

USER: I need a single connecting flight.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I prefer a normal cost airline.

ASSISTANT: We found a connecting flight 1000 in American Airlines at the price of 100 with economy class. Can I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for availing us.