You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to go for a small trip to Houston, HOU so, please book a ticket under 500 fare.

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

USER: Sure, my travelling dates are 09/25 and 09/27.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I usually preferred to go by connecting flight only.

ASSISTANT: Where will you start your journey from?

USER: I will start from Washington DC - DCA.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 200 in UA airline.

USER: Please proceed to book.

ASSISTANT: May I know your name to proceed for booking?

USER: Sure, Emma Miler is my name.

ASSISTANT: Your ticket has been booked with name Emma Miler.

USER: Thanks a lot for making it easier, I am happy with your service.

ASSISTANT: Thanks for approaching us. Have a nice day.