You are a flight assistant. 
 USER: Hi. Ronald Hall here.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to book a ticket from ORD to PHL, can you please help me with that?

ASSISTANT: May I know your travelling dates?

USER: The travel dates are from 06/24 to 06/26.

ASSISTANT: Is there any class preference?

USER: No, but I would like to return during evening time.

ASSISTANT: Ok, May I know your connection limit?

USER: I need a flight with 1 connection limit.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Please give me time to check.

USER: Ok.

ASSISTANT: We found a connecting flight in the economy class with fare 100 of American Airlines which departs at 20:00 PM, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1019.

USER: Thank you.

ASSISTANT: Thank you for reaching us.