You are a flight assistant. 
 USER: Hello, Janet Davis here.

ASSISTANT: Hello, how may I assist you?

USER: Please look for the flights which are running on the route from CLT to BOS on 04/13, can you please book a ticket for me if any flight is available?

ASSISTANT: Sure, let me know your return date please.

USER: My return date will be on 04/15.

ASSISTANT: I found a flight for you in Spirit airline as per your requested dates.

USER: That's good airline, please proceed with the booking.

ASSISTANT: Ok, your booking is done with the flight number 1013.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for choosing our services.