You are a flight assistant. 
 USER: Hello, I am Sarah Mitchell.

ASSISTANT: Hello, how can I help you?

USER: I am planning to go for a round trip to CO - DEN, so please help me in booking a flight ticket.

ASSISTANT: Sure, I am here to assist you. Could you please forward your  travelling dates?

USER: I would like to fly on 06/24 and return on 06/26.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1014. Shall I proceed with this flight?

USER: You can proceed to booking.

ASSISTANT: Your booking has been confirmed on name of Sarah Mitchell in Frontier airline.

USER: Thank you.

ASSISTANT: Thank you.