You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to visit Washington DC, whose airport code is IAD. Please help me in booking my ticket from MCO.

ASSISTANT: Sure, let me know your travel dates?

USER: My travelling dates are from 04/02 to 04/04.

ASSISTANT: Do you have any class preference?

USER: I would like to prefer economy class.

ASSISTANT: Any other requirement to be met?

USER: My departing time will be in afternoon and I need a single connecting flight.

ASSISTANT: Ok, may I know your name please?

USER: My name is Amy Young.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: United Airlines have a connecting flight with number 1023 for fare 200 having an economy class which departs at 15:00PM, shall I proceed?

USER: That's perfect, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.