You are a flight assistant. 
 USER: Hello. Frank Martinez here.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please reserve a flight ticket from ORD to CLT?

ASSISTANT: Sure, I am here to help you in booking, can you share me your preferable dates?

USER: Thank you for accepting my request, my departure is on June 10 and please book my return ticket also on June 12.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: I found a flight with airfare is 100 having UA airline and one connection limit. Can I proceed with the booking?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket is confirmed with the flight-1000.

USER: Thank you for your kind assistance.

ASSISTANT: Thank you for contacting us.