You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to travel to DFW, can you please help me to reserve flight ticket form DCA?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my planned travelling dates are Apr, 12 and 14 respectively.

ASSISTANT: Do you want connecting flight or direct flight?

USER: Flight has to be with single connection.

ASSISTANT: Do you have any other requirements?

USER: No, thank you for asking.

ASSISTANT: May I know your name?

USER: Sure, my name is Rebecca Martin here.

ASSISTANT: We found a Southwest airline, flight number: 1007, price: 100 with one connection.

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.