You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Frank Harris, willing to join in the sports team.

ASSISTANT: OK.

USER: So, please book a flight from Dallas, DFW.

ASSISTANT: Sure, please help me with your start and return dates?

USER: I would like to start on 05/30. I will return on 06/01.

ASSISTANT: Where you would like to travel?

USER: My destination point is Washington, IAD.

ASSISTANT: May I know your budget for your ticket?

USER: I can afford an amount of 5000.

ASSISTANT: Frontier airline plane is available on your route with fare 1000 under business class.

USER: Ok. You can proceed to make a reservation with my name.

ASSISTANT: Shall I proceed to this flight.

USER: Sure.

ASSISTANT: Ok, your booking is successfully completed with flight number 1000.

USER: Thank you.

ASSISTANT: Thanks for communicating with us, have a nice day.