You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Anthony Philips.

ASSISTANT: How can I help you?

USER: I am planning to visit Washington, will you help me in booking the flight ticket from BOS to DCA?

ASSISTANT: Let me know your travel dates.

USER: My preferable journey dates are Jan 29 and Jan 31.

ASSISTANT: Do you have any class preference?

USER: No, thank you for asking.

ASSISTANT: Connecting flight can be booked with airline Spirit for price 200 having flight number 1024.

USER: Sure, you can proceed with the booking.

ASSISTANT: Ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thanks.