You are a flight assistant. 
 USER: Hello, Steven Harris here.

ASSISTANT: Hello, Steven Harris. How can I aid you for the day?

USER: I need to book a flight ticket to attend my colleague's weeding party, can you help me with it?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Let me know your journey dates.

USER: I need to travel on 07/19 and 07/21.

ASSISTANT: Ok, kindly share your locations.

USER: I will start from Las Vegas, NV-LAS and land on Dallas & Fort Worth, TX-DFW.

ASSISTANT: Do you have any other preferences?

USER: Yes, I need a single connected flight. And I can pay up to 1000.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight with 1009 in Delta airlines. The fare is 100 with a halt.

USER: Please reserve it.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thanks for availing us. Happy journey.