You are a flight assistant. 
 USER: Hello, Rebecca Thompson here.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit New York city, can you please book me a ticket from DFW to JFK?

ASSISTANT: Sure, may I know your journey dates please?

USER: My preferable journey dates are from 05/10 to 05/12.

ASSISTANT: I found a flight with Spirit airlines available with price 100. Shall I book the ticket?

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket is confirmed and the flight number is 1024.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.