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

ASSISTANT: Hello, how may I help you?

USER: I would like to go for a round trip to Denver, CO - DEN with my Colleagues, can you help me in booking a ticket?

ASSISTANT: Sure, from where you plan to start your journey?

USER: I have mentioned that it is a round trip.

ASSISTANT: May I know your intended dates of travel?

USER: My planned dates are 02/12 to 02/14.

ASSISTANT: Do you need  a halt in between your journey?

USER: Yes, I need it.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: There is a Spirit airline with flight number 1013 and price of 100.

USER: Ok, please confirm my ticket.

ASSISTANT: Your booking has been made.

USER: Thank you.

ASSISTANT: Thank you for approaching us.