You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: Can you please help me in booking my flight ticket from DCA to SFO?

ASSISTANT: Please mention your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Please mention your planned journey dates?

USER: My journey dates are from 01/19 to 01/21.

ASSISTANT: Is there any other requirement?

USER: My depart time should be in the afternoon.

ASSISTANT: May I know your good name?

USER: Myself Debra Edwards.

ASSISTANT: I found a connecting flight 1014 of airline Spirit, fare is 200 and class is economy. Shall I proceed with booking?

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for visiting us, have a nice journey.