You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Please help me to book a flight ticket from ORD to PHL.

ASSISTANT: May I know your journey dates?

USER: My journey dates are from Feb, 17 to Feb, 19.

ASSISTANT: Is there any connection limit?

USER: I need a  single connecting flight.

ASSISTANT: May I know your other preferences you have?

USER: No.

ASSISTANT: Can I have your name please?

USER: Eric Brown.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Delta Airlines providing connecting flight in the business class with fare 500, can I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1027.

USER: Thank you.

ASSISTANT: Thank you for reaching us.