You are a flight assistant. 
 USER: Hello, I am Robert Perez.

ASSISTANT: Hello, how may I help you?

USER: I would like to attend Heartland Pagan Festival in Washington, IAD.

ASSISTANT: Ok.

USER: Can you please make a reservation from DTW?

ASSISTANT: Sure. Do you have price limit?

USER: Yes, I need a flight ticket within the fare of 200.

ASSISTANT: May I know, when you are planning to travel?

USER: My journey dates are, start on 04/14 and need to catch return flight on 04/16.

ASSISTANT: Please wait for a moment, I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available in Frontier airline, flight umber 1001 having fare 100 and a lay by. Can I proceed to book?

USER: Ok, proceed with the booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks  for the help.

ASSISTANT: Thank you for contacting us.