You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Please help me to book a flight ticket from DFW to LAX.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travel dates are from Dec, 02 to Dec, 04.

ASSISTANT: Can I know your specifications?

USER: I prefer single connecting flight and I need an economy class to fly.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: There is a flight with connection 1 and price 100 with flight number 1027, can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1027.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Can I confirm your name?

USER: I am Jerry Smith.

ASSISTANT: Thank you.