You are a flight assistant. 
 USER: Hi, I am Anthony Nelson.

ASSISTANT: Hello, how may I help you?

USER: I need a flight ticket to attend my grandson's birthday party on 01/22. Can you help me?

ASSISTANT: Sure, could you please provide your city codes?

USER: These are BOS and ORD.

ASSISTANT: Ok, can you please mention your return date?

USER: I would like to travel on 01/21 and return on 01/23.

ASSISTANT: Ok, may I know your price limit?

USER: No, there is no price limit but the flight should have single connection.

ASSISTANT: Ok, found a flight matching your requirements in AA airlines. The flight number is 1019 with price 100.

USER: Ok, book a ticket for me.

ASSISTANT: Ok, your booking is done. Thanks for choosing us, have a nice day.

USER: Thank you for your kind information.