You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please let me know how may I help you?

USER: I am Nicholas King from New York. Could you please book a flight ticket in economy class to Houston?

ASSISTANT: Sure, I am happy to help you with the flight ticket booking.

USER: Thank you.

ASSISTANT: May I know your departure and arrival travel dates?

USER: I want to depart on 28 July and return back on 30 July.

ASSISTANT: Ok, what are your source and destination airport codes?

USER: My source and destination airport codes are LGA and IAH.

ASSISTANT: Ok, do you need any halts in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please tell me if you have any other requirements.

USER: I don't have any other specifications.

ASSISTANT: There is a flight which is an economy class with the connection limit 1 and the ticket cost is 100 in the JetBlue airlines. Can I proceed to reserve the flight ticket?

USER: Yes, proceed.

ASSISTANT: I have reserved your ticket with the flight number 1000,  the departing time is 19:00 PM and the returning time is 15:00 PM. Have a nice journey.

USER: Thank you for your service.

ASSISTANT: You are most welcome. Thank you for choosing us.