You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I be of your help today?

USER: I am Amanda Mitchell, I want to fly from Dallas & Fort Worth, TX - DFW to Washington DC - DCA. Can you book me a ticket ?

ASSISTANT: Sure, I will book a ticket for you. May I please know your date of the journey?

USER: Yes, I would start my travel on May 25 and end on May 27.

ASSISTANT: OK, just give me some time to check.

USER: Sure.

ASSISTANT: Thanks for waiting. A flight of UA airline with a flight number of 1015 has matched with your journey details. The ticket price is 100.

USER: Great. Please book my ticket.

ASSISTANT: OK, sure. Congratulation, your ticket has been confirmed.

USER: Thank you for the service.

ASSISTANT: It has been a pleasure to serve you. Have a good day.