You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Samuel Wright. As my kids are much interested to visit Millennium Park on 09/12, so can you please check the availability of flights from ATL?

ASSISTANT: Ok, can you please provide your return date and the destination airport code?

USER: My return day will be on 09/14 from ORD.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: Samuel, there is a flight available with UA airline and the price 300.

USER: That's nice. Please book the ticket.

ASSISTANT: Your booking is confirmed with 1003 flight number.

USER: Thank for helping me out in booking a flight ticket.

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