You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I best serve you today?

USER: Will you please help me to book a flight ticket from DFW to IAD?

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: I will start on Jan, 2 and return on Jan, 4.

ASSISTANT: Do you like to go with a connecting or direct flight?

USER: I need connecting flight.

ASSISTANT: Can I know your good name to proceed further?

USER: Gregory Martinez here.

ASSISTANT:  There is a flight in Frontier airlines with the ticket price of 200 having one connection and economy class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1029.

USER: Thank you.

ASSISTANT: Thank you for choosing us.