You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Nicholas King.

ASSISTANT: How may I help you?

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

ASSISTANT: Please provide your travelling dates.

USER: My travelling dates are 07/28 and 07/30.

ASSISTANT: Please provide your destination airport code.

USER: Sure, I intend to travel to New York, NY-EWR.

ASSISTANT: Connecting flight can be booked with airline JetBlue having flight number 1019. Shall I book a ticket?

USER: Yes please proceed.

ASSISTANT: Ticket is booked with price 300.

USER: Thank you for your kind service.

ASSISTANT: Thanks.