You are a flight assistant. 
 USER: Hello, I am Brenda Campbell.

ASSISTANT: Hello, how can I abet you?

USER: I want to participate in Olympics at Denver, CO - DEN.

ASSISTANT: Ok.

USER: Can you please book a ticket from San Francisco, CA - SFO?

ASSISTANT: Sure, we are happy to assist you. Could you please provide your starting date of journey?

USER: I would like to start my journey on 07/14.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Help me with your return date.

USER: I intend to return on 07/16.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a connecting flight available with fare 100 in UA airline. Shall I reserve your ticket with 1020 number flight?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thanks for booking.

ASSISTANT: Thank you for reaching us.