You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Lee.

ASSISTANT: How can I assist you today?

USER: I want to attend a meeting in Houston.Can you book a ticket from DCA to HOU?

ASSISTANT: Sure, will you provide your travelling dates please?

USER: I want to travel on 11/13 and 11/15.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: There is a flight with price 100 and the connections limit is 1. Shall I confirm your ticket?

USER: Yes, please.

ASSISTANT: Your ticket is booked. The flight number is 1014 and the airline is AA.

USER: Thank you for helping me out.

ASSISTANT: Welcome, have a great day.