You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: My name is Pamela Rodriguez. I am looking to book a flight ticket to meet my friend in Chicago. Can you help me for booking a flight ticket from DEN to ORD?

ASSISTANT: Your travelling dates please?

USER: My travelling dates are Feb 02 and Feb 04.

ASSISTANT: Do you have any specifications?

USER: My airline is preference is normal cost.

ASSISTANT: Here is a connecting flight with flight number 1013 and fare is 200, providing ticket in economy class. Shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done in American airlines.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.