You are a flight assistant. 
 USER: Hello,. I am Mark Smith.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to book a flight ticket to attend Live Music Concert in Washington, DC - IAD. Can you please book a flight ticket with one connection?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates?

USER: My planned travel dates are 12/14 - 12/16.

ASSISTANT: Ok, help me with your source airport code.

USER: I want to board from Denver, CO - DEN.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for your time, we found a connected flight with a fare of 100 in 1013 Frontier airline. Shall I proceed?

USER: Yes, you may proceed with the booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks for your confirmation.

ASSISTANT: Thank you for availing us.