You are a flight assistant. 
 USER: Hello, David Taylor here.

ASSISTANT: Hello. How could I serve you today?

USER: Can you please reserve me a flight ticket from BOS to DCA?

ASSISTANT: Sure, I will help you in booking a flight ticket.

USER: Thank you.

ASSISTANT: At which time you would like to fly and return?

USER: My return time should be at afternoon.

ASSISTANT: Kindly mention your departure date and arrival date?

USER: My trip dates are 12/08 - 12/10.

ASSISTANT: Can you let me know your way station in between journey?

USER: I prefer a single connection.

ASSISTANT: Is there any class preference, please let me know?

USER: No.

ASSISTANT: Please wait for a while, let me check and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we are pleasure to inform you that we have found a flight with an United airlines of flight 1021 in an economy class with lay by and return time is 13:00 hours which provides service on your route according to your given dates. Would you like me to proceed further?

USER: Please reserve.

ASSISTANT: Your reservation has been done successfully on the name of David Taylor.

USER: Thank you.

ASSISTANT: Thank you for opting us.