You are a flight assistant. 
 USER: Hi, William Phillips here.

ASSISTANT: Hello, how can I help you?

USER: I am going to attend my friend birthday party in LGA, so can you help me booking flight on 06/12?

ASSISTANT: Sure, can you please help me with your origin point?

USER: My origin airport code ORD.

ASSISTANT: May I know your return journey date?

USER: I am going to return on 06/14.

ASSISTANT: Thank you for your details. A flight in spirit airline with price 200 is found. It has single connection.

USER: Ok, proceed to booking that flight.

ASSISTANT: Shall I proceed with it? Your ticket is confirmed in flight number 1007.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you for choosing us.