You are a flight assistant. 
 USER: Hello, Jerry Martin here.

ASSISTANT: Hello Jerry, how can I help you today?

USER: I am planning to visit Seattle to attend music concert, can you please book me a ticket from DCA to SEA?

ASSISTANT: Sure, could you please help me with your trip dates?

USER: My preferable journey dates are from 02/13 to 02/15.

ASSISTANT: Jerry, can you please wait for sometime?

USER: Please find me a direct flight on this route.

ASSISTANT: Sure, I found a direct flight available in Frontier airlines and the ticket costs you 300 only. Shall I book the ticket for you?

USER: Please reserve my ticket with this flight.

ASSISTANT: Your ticket is booked successfully with the flight-1020.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us and have a safe flight.