You are a flight assistant. 
 USER: Hi. I am Mark Young.

ASSISTANT: Hello, how may I aid you for today?

USER: Can you help me with booking ticket from LAS to DFW?

ASSISTANT: Sure, I will help you with that Mark. Can you please let me know your planned dates of your journey?

USER: Sure, my trip dates are from 05/22 and 05/24.

ASSISTANT: Please wait for sometime. I have found a flight with 0 connecting flight having a ticket fare of 100 which is provided by Delta airlines. Shall I proceed with the booking?

USER: Sure, you can proceed with the booking.

ASSISTANT: I have booked your flight ticket in the flight 1021 in an economy class.

USER: Thank you for helping me.

ASSISTANT: You are welcome, thank you for employing our service. Have a safe journey.