You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My preferable journey dates are June 13 and June 15.

ASSISTANT: Ok, please mention your name.

USER: My name is Kevin King.

ASSISTANT: Ok, do you have any connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Ok, do you have any other specifications?

USER: No.

ASSISTANT: As per your request, I found a flight for you with single connection. Shall I proceed for booking?

USER: Please book my ticket in this flight.

ASSISTANT: Your ticket is booked with flight number 1017 and airline is Spirit.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome, have a safe flight.