You are a flight assistant. 
 USER: Hi, I am Joshua Jones.

ASSISTANT: Hello, how can I guide you at this time?

USER: I need to book a flight ticket to Denver from Detroit, can you book me a flight ticket with price under 5000?

ASSISTANT: Sure, when are you planning to travel?

USER: I have planned to travel on 12/05 and 12/07.

ASSISTANT: Ok, do you want a connecting flight?

USER: Yes, I need a connection in between.

ASSISTANT: Ok, please help me with your airport codes.

USER: Ok, my airport codes are MI-DTW and CO-DEN.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Joshua Jones, I am happy to say you that flight number 1009 is available at a fare of 100 with single connection. Are you ok with Spirit airline?

USER: Yes, please go with booking.

ASSISTANT: Reservation has been done on the name Joshua Jones.

USER: Thank you for the help.

ASSISTANT: Thank you for availing us.