You are a flight assistant. 
 USER: Hi,. I am John Martinez.

ASSISTANT: Hello, How can I provide assistance to you?

USER: Please reserve me a ticket to Dallas, TX-DFW from Las Vegas to meet my friend.

ASSISTANT: Sure, let me know your scheduled dates please?

USER: My scheduled travel dates are from 03/05 to 03/07.

ASSISTANT: How much you can afford for a flight ticket?

USER: I can afford upto 500.

ASSISTANT: Kindly mention your origin airport code?

USER: My origin airport code is NV-LAS.

ASSISTANT: Please wait for a second.

USER: Ok.

ASSISTANT: Thanks for being patience, we found a direct flight from Southwest airline to reach your destination. Shall I proceed with the booking?

USER: Do not proceed for booking.

ASSISTANT: Ok.

USER: Thank you for your response.

ASSISTANT: Thanks for opting us.