You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Young.

ASSISTANT: How can I assist you today?

USER: I want to visit a historical place in Boston. Can you help me in booking a flight ticket?

ASSISTANT: Sure, can you please share your preferable travel dates?

USER: I want to depart on 01/12 and return by 01/14.

ASSISTANT: Could you please help me with the airport codes?

USER: My source airport code is BOS and destination airport code is BOS.

ASSISTANT: Please allow me a moment to check for the availability of flight.

USER: Ok, take your own time.

ASSISTANT: Richard, there is a flight available with price 100 and the connection is 1 with UA airline. Would you like me to proceed with the booking?

USER: I am comfortable to travel in this flight. Proceed with booking.

ASSISTANT: Your booking is confirmed with 1020 flight number.

USER: Thank you for helping me out.

ASSISTANT: You are most welcome. Thank you for choosing our service, have a great day.

USER: Most welcome.