You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Gregory Taylor, planning to visit Chicago. Can you please book me a ticket from OAH to ORD?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My preferable journey dates are from Sept 09 and Sept 11.

ASSISTANT: Please, re verify your source code and let me know.

USER: Sorry, it's IAH.

ASSISTANT: Let me know your connection limit.

USER: I prefer connecting flight for this trip.

ASSISTANT: Which class would you prefer for your journey?

USER: I prefer afternoon return time flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Southwest airline flight is available with price 100 and single connection which will depart at 13:00 PM and return at 13:00 PM. Shall I confirm it?

USER: Please book my ticket in this flight.

ASSISTANT: Your ticket has been confirmed in economy class with flight number 1015.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.