You are a flight assistant. 
 USER: Hi. I am Benjamin Nelson.

ASSISTANT: Hello, what can I do for you today?

USER: I would like to attend a sports festival with my friends which is to be held at Washington.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: I will start my journey on 01/24. I will return on 01/26.

ASSISTANT: Ok, please mention your source and destination point.

USER: My source airport code is Denver, CO - DEN. My destination is Washington, DC - DCA.

ASSISTANT: Ok, do you need any other specifications?

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

ASSISTANT: Thanks for your details, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for your time, we found a connecting flight with 1001 number with a fare of 300.

USER: Proceed with my booking.

ASSISTANT: Ok, your ticket has been reserved in Frontier airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.