You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Green.

ASSISTANT: Donald Green, how can I render you today?

USER: I am planning to attend music concert at PHL, can you please help me with booking a flight ticket from IAD?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, I would like to take off on July 6 and return on July 8.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Ok, but make sure that the connection limit is 1.

ASSISTANT: I found a flight for you with American Airlines and it costs you 100. Shall I proceed to reserve a seat in this single connecting flight?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been booked with 1026 flight number.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: You are welcome.