You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Margaret Lewis here.

ASSISTANT: How can I assist you?

USER: Can you please book a flight ticket from ORD to JFK?

ASSISTANT: May I know your travel dates for the booking please?

USER: Sure, I need to travel on dates of 04/15 and 04/17.

ASSISTANT: There is a connecting flight available and the airlines AA. Can I book?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is booked successfully and the flight number is 1024.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.