You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good evening.

USER: Myself Rebecca young.

ASSISTANT: Rebecca, how can I assist you today?

USER: I would like to know the history of Liberty Bell at PHL, I want to book a ticket from DFW.

ASSISTANT: Sure, let us know your journey dates.

USER: My journey dates are from 05/24 to 05/26.

ASSISTANT: Please wait for a while, I will try to serve you the best service.

USER: Sure, please check.

ASSISTANT: There is a flight available with Frontier airlines, shall I book your ticket?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed with the flight number 1011.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing our service, have a great flight.