You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am David Martin. I want to book a flight ticket to celebrate a flowers festival in Detroit, could you help me in booking a flight ticket?

ASSISTANT: Sure, Can you please provide your journey airport codes?

USER: My source is New York, NY - JFK and destination is MI - DTW.

ASSISTANT: Ok, please provide your journey dates.

USER: I would like to fly on 05/29 and return on 05/31.

ASSISTANT: Ok, How much do you want to spend on your ticket?

USER: I can afford up to 1000.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight in 1000 Frontier plane with a fare of 100.

USER: You can proceed to booking.

ASSISTANT: Sure, your ticket has been booked with a halt.

USER: Thank you for your service.

ASSISTANT: Thank you for availing us.