You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I want to book a ticket from DCA to SFO. Could you book a ticket?

ASSISTANT: Sure, may I know your trip dates?

USER: Departure is by Apr, 1 and return is Apr, 3.

ASSISTANT: Do you have any connection limit?

USER: I would prefer connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Betty Phillips.

ASSISTANT: Southwest airlines is found with the price of 200 having direct flight. Can I proceed to booking?

USER: Please book a ticket.

ASSISTANT:  Your ticket has been reserved with the flight- 1029.

USER: Thanks.

ASSISTANT: Thank you for reaching us.