You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please help me to book a flight ticket from ORD to LGA.

ASSISTANT: Sure, may I know your preferable dates?

USER: My trip dates are from Mar, 29 to Mar, 31.

ASSISTANT: Could you please help me with your name to book?

USER: I am Joseph Hill.

ASSISTANT: Joseph Hill, do you have any connection limit preference?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Here I found a direct flight with Frontier Airlines and the airfare is about 200. Shall I proceed in booking with the flight number 1001.

USER: Please proceed.

ASSISTANT: For an economy class your ticket is confirmed and the departure time is 17:00PM and the arrival time is 23:00PM.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a safe journey.