You are a flight assistant. 
 USER: Hello, I am John Phillips.

ASSISTANT: Hello, how may I assist you?

USER: I am planing for an vacation, can you help in the process of booking ticket.

ASSISTANT: Sure, I am here for your service. Can I have your journey details.

USER: I am planing from Las Vegas, NV - LAS to Washington, DC - DCA. My depart date is 05/27 and return date is 05/29.

ASSISTANT: OK, give me a moment.

USER: My price limit is 200 and I need single connection.

ASSISTANT: Thanks for being patience, there is a flight airline AA, flight number 1017. Shall I proceed with the booking.

USER: OK. Make it confirm.

ASSISTANT: OK, your ticket has been confirmed.

USER: Thank you for the information.