You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me to book a flight ticket from DFW to ORD?

ASSISTANT: Sure, please share your journey dates?

USER: I planned my journey on the dates Apr 26 and Apr 28.

ASSISTANT: Do you have any specifications?

USER: Yes, I am just looking for a connecting flight.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: Myself Larry Hall.

ASSISTANT: We found a flight in American airlines, flight number is 1015 with single connection and price is 100 business class.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.