You are a flight assistant. 
 USER: Hi, I am Ryan Carter.

ASSISTANT: Hello, how can I aid you today?

USER: As I am a doctor I need to fly with the direct flight to Orlando to treat an emergency case, can you help me to book a economy class ticket?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Could you please help me with your  travelling dates?

USER: I need to depart on 12/21 and my return date would be on 12/23.

ASSISTANT: May I know your travelling airport codes?

USER: I would like to book a flight ticket from Detroit, MI-DTW to reach Orlando, FL-MCO.

ASSISTANT: Please hold on, I will back with the flight details.

USER: Sure.

ASSISTANT: There is a Delta 1008 airline with fare of 100 and a break in between the journey. Shall I proceed with booking?

USER: Everything is fine, you can proceed with the booking.

ASSISTANT: Your booking has been confirmed on name of Ryan Carter.

USER: Thank you for your kind service in booking.

ASSISTANT: Thank you for approaching us, have a safe journey.