You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Robert Green. I want to attend a food festival in Seattle WA - SEA, so please help me in booking a flight from Denver, CO - DEN.

ASSISTANT: Sure, Can you please provide your journey dates?

USER: I would like to fly on 10/20 and return on 10/22.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Thank you for providing details, we found a flight in Hawaiian plane with flight number 1023.

USER: You can proceed to booking.

ASSISTANT: Sure, your ticket has been booked with a fare of 100.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.