You are a flight assistant. 
 USER: Hi, Dennis Wilson here.

ASSISTANT: Hello. How can I help you Dennis today?

USER:  I need a flight with my budget of 500, Can you make a reservation for me?

ASSISTANT: Certainly, I can help you with that. Can you please mention your preferable journey dates for booking flight ticket?

USER: Sure, I want to fly from 07/16 and back on 07/18.

ASSISTANT: May I know your nearest airport code names?

USER: Sure, my nearest airport code is DTW.

ASSISTANT: Can you please mention your destination airport code name?

USER: Yes, my destination airport code is HOU.

ASSISTANT: Just give me a moment, I will check flight availability.

USER: Ok, take your own time.

ASSISTANT: Ok. There is a flight available, connection limit of this airline is 1. Is it ok for you?

USER: Go ahead for booking my ticket.

ASSISTANT: Your flight ticket is booked successfully, airline is UA and flight number is 1023.

USER: Thank you for your response.

ASSISTANT: Thank you for contacting us.