You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket from DFW to LAS, can you please help me to make a reservation?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are on Jan 13 and Jan 15.

ASSISTANT: Are you fine with connecting flight?

USER: I need a single connecting flight.

ASSISTANT: Can I know your name?

USER: My name is Helen Lee.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: There is a direct flight 1002 of Hawaiian airlines, can I proceed?

USER: You can proceed.

ASSISTANT: Your booking is done in economy class.

USER: Thank you.

ASSISTANT: Welcome.