You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I am planning to travel from DTW to LGA, can you please help me in flight booking?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: I want to fly on Feb 14, return on Feb 16.

ASSISTANT: Ok, please let me know your preferences.

USER: I want a direct flight.

ASSISTANT: Can I have your good name please to proceed further?

USER: My name is Nicholas Edwards.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Spirit airlines running a flight in your route with connection 0 and the ticket fare is 200 in economy class. Shall I proceed with booking?

USER: Ok, proceed to booking.

ASSISTANT: Ok Nicholas Edwards, your ticket booking has done and the flight number is 1004.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.