You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark Perez.

ASSISTANT: How can I assist you today?

USER: I want to book a flight from DFW to HOU, can you please help me to book a flight ticket?

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

USER: Sure, my journey dates are Jan 12 and Jan 14.

ASSISTANT: Do you have any specifications?

USER: My departing time is afternoon.

ASSISTANT: Do you have any other preferences?

USER: I need a single connection flight.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting. The UA airline is providing an economy class flight with price 300 and the connections 1. The departure time is 16:00 PM. Shall I confirm your ticket?

USER: Ok, please confirm the booking.

ASSISTANT: Your ticket is booked. The flight number is 1017.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.