You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am William Perez, want to travel from BOS to ORD. Please help me in booking my ticket.

ASSISTANT: Yes, I will assist you with the booking. May I know the travel dates too?

USER: Sure, my travelling dates are from 12/28 to 12/30.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for assisting me, the flight which you need is available with 1 connection limit and the airfare is 100. Can I book the flight 1002?

USER: Please book this ticket for me.

ASSISTANT: Ok, the flight ticket is booked and the airlines is Spirit.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our agency.