You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am looking to book a flight ticket from IAD to DFW. Can you help me for that?

ASSISTANT: Sure, can you share your trip dates?

USER: My travelling dates are June 30 and July 02.

ASSISTANT: Do you have any connection limit?

USER: I prefer to book a single connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: My return time is afternoon.

ASSISTANT: Please forward your name.

USER: My name is Deborah Perez.

ASSISTANT: We found a connecting flight of fare 100 with airline Delta and number 1018. Can I book?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for availing us.