You are a flight assistant. 
 USER: Hi. Here Ruth Clark.

ASSISTANT: Hello, how may I assist you?

USER: I am planning a trip in the month of December, so I need an advance flight ticket booking, can you find a flight for me?

ASSISTANT: Sure, may I know travel dates to booking process?

USER: Sure, my travel dates are on 12/22 and back on to my region on 12/24.

ASSISTANT: Can you please share me your airport codes?

USER: My source region is LGA and I have to land on EWR.

ASSISTANT: We found a flight on your details with airline Spirit, flight number: 1000.

USER: Yes, it is exactly matching to my intent. You can book my ticket.

ASSISTANT: Your ticket has been booked.

USER: I had a great experience with your service, thank you so much for booking.

ASSISTANT: Thank you so much.

USER: Most welcome.