You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need you to book a flight ticket. Please help me.

ASSISTANT: Sure, may I know your planned travel dates?

USER: January 12 and 14 are my planned travelling dates.

ASSISTANT: Please share me your source and destination points.

USER: DTW and DEN are the respective airport codes.

ASSISTANT: Do you have any other specifications?

USER: Nothing much to state.

ASSISTANT: May I know your good name?

USER: Ryan Nelson.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Sure, I will wait.

ASSISTANT: We found an airline: Southwest, flight number: 1007 and price is 100 with one connection.

USER: Please book the ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.