You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you at this moment?

USER: I am Virginia Walker. I want to conduct a meeting for special children at Detroit, can you help me in my booking?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Can you please provide your boarding and landing airport codes?

USER: My source airport code is Denver, CO - DEN.

ASSISTANT: Ok, how much you can afford for the flight ticket?

USER: My destination is Detroit, MI - DTW. I can pay up to 200.

ASSISTANT: Ok, share your trip dates?

USER: I will start my journey on 04/16. I will return back on 04/18.

ASSISTANT: We found a Hawaiian airline with fare of 200 and a halt in between the journey matches your schedule. Can I proceed with booking?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been reserved with flight number 1001.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.