You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Katherine Davis.

ASSISTANT: How shall I assist you?

USER: I need to book a flight ticket from New York, NY-JFK to Dallas & Fort Worth, TX-DFW. Could you please help me with booking a flight ticket?

ASSISTANT: Could you please provide your journey dates?

USER: 05/23 and 05/25 are my travelling dates.

ASSISTANT: Please provide your journey codes?

USER: I have already mentioned above.

ASSISTANT: Ok. Ticket can be booked with airline Delta, connections 1, flight number 1010  having price 100. Shall I book a ticket?

USER: You can proceed with booking.

ASSISTANT: Ticket is booked. Thank you.

USER: Thank you for your help.