You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Gary White here. Can you please help me in booking a flight ticket from DCA to ORD?

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

USER: Sure, my travel dates are from June 26 to June 28.

ASSISTANT: Do you have any class preference?

USER: No, but please check that my return time must be in the afternoon.

ASSISTANT: Sure. Gary White, there is a flight available with price 300 and the connection is 1 with JeBlue airline. Would you like me to proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your booking is confirmed with 1001 flight number.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us.