You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I planned to meet my friend in DTW, can you please help me to book a flight ticket from ORD?

ASSISTANT: Sure, can I know your travelling dates?

USER: I prefer to travel on Mar 9 and Mar 11.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Richard Thomas.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in afternoon.

ASSISTANT: We found Delta airline with price 200 and economy class and airline number is 1004 with arrival time is 21:00 hours and departure time is 17:00 hours, Shall I proceed for booking?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.