You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to go my friend marriage, from TX-DFW to PA-PHL.Can you please help me out?

ASSISTANT: Sure, may I know your travel dates?

USER: The travelling dates are from 05/25 to 05/27.

ASSISTANT: Ok, as per your details there is a flight to book your ticket with airline UA.

USER: May I know the price?

ASSISTANT: Price 300.

USER: Ok, proceed with my booking.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Steven Baker.

ASSISTANT: Your ticket has been booked with airline number 1021.

USER: Thank you for your help.

ASSISTANT: Thank you.