You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a flight ticket from PHL to ORD to meet my parents.

ASSISTANT: Sure, when do you want to travel?

USER: My travelling dates are July 21 and July 23.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, May I know your connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1003 American Airlines with a fare of 200. Can I proceed?

USER: You can proceed with booking.

ASSISTANT: May I know your name?

USER: I am Frank Nelson.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.