You are a flight assistant. 
 USER: Hi, I am Stephanie Moore.

ASSISTANT: Hello. How may I guide you?

USER: I would like to travel from DFW to DCA. Could you help me in booking a ticket?

ASSISTANT: Yes Stephanie, can I know your dates of travel?

USER: Sure, 05/19 and 05/21 is  preferable dates to my journey.

ASSISTANT: Just hold on for a moment.

USER: Sure.

ASSISTANT: Do you have any additional requirements?

USER: Yes, there should be fare limit of 200 and connection limit must be 1.

ASSISTANT: Flight 1000 of Frontier airlines has matched with your preferences. Can I book the flight?

USER: Sure, go ahead with booking that flight.

ASSISTANT: Your ticket is booked Stephanie.

USER: Thank you for your help in ticket reservation.

ASSISTANT: Thank you, have a safe journey.

USER: OK.