You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a ticket from DTW to LAX, can you help me?

ASSISTANT: Can I know your travelling dates please?

USER: My travel dates are Apr 16 and 18.

ASSISTANT: May I know your connection limit?

USER: I prefer a direct flight.

ASSISTANT: Do you have any class preference?

USER: I want to travel in economy class.

ASSISTANT: Let me know your name please?

USER: I am Jack Clark.

ASSISTANT: I have searched a flight ticket with fare 200 and 1017 as flight number in Frontier Airline. Shall I proceed with booking?

USER: You can book it.

ASSISTANT: Ok, your ticket is confirmed in economy class.

USER: Thank you for booking.