You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What assistance do you need from our travel agency?

USER: Can you please book a flight ticket from DFW to LAS?

ASSISTANT: Sure, I am here to help you. Can you please tell me your trip dates?

USER: Thank you. I have planned my travel dates as Dec 31 and Jan 02.

ASSISTANT: Is there any specification about the connection limit?

USER: Yes, I am looking for single connecting flight.

ASSISTANT: Ok, which type of class do you prefer either a business class or  an economy class?

USER: I am not specific about any class.

ASSISTANT: Ok, what is your full name?

USER: Sure, myself Cynthia Jones.

ASSISTANT: Ok, please give me a minute.

USER: Sure, take your time.

ASSISTANT: Based on your details, there is a flight in the Delta Airlines with the single connection limit and the ticket cost is 200. Shall I reserve an economy class flight ticket?

USER: That is fine, please proceed with booking.

ASSISTANT: I have booked your ticket with the flight number 1009. Have a nice journey.

USER: Most welcome.

ASSISTANT: Thank you for choosing us.