You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Carolyn Turner. Can you please make a airline reservation from JFK to DCA?

ASSISTANT: Sure, can I know your trip dates?

USER: My journey dates are on July 15th and July 17th.

ASSISTANT: Can I know your depart and return timing?

USER: My return flight time should be in the afternoon.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: There is a flight on United airline, flight number 1005 it has connection in between journey and return time is 19:00PM.

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.