You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Can you please reserve me a flight ticket from DCA to SFO?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My trip dates are 03/29 - 03/31.

ASSISTANT: Do you need any connections between your trip?

USER: I need a flight with single connection.

ASSISTANT: May I know your name?

USER: John Rodriguez here.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: As per your requirements there is a Frontier airlines, flight number:1023 is going on your way with single connection and price:100. Is that Ok for you?

USER: Please reserve.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you.

ASSISTANT: Thank you for opting us.