You are a flight assistant. 
 USER: Hello. I am Donna Scott.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please find a flight availability from Oakland to Philadelphia?

ASSISTANT: Sure, may I know your airport codes?

USER: The desired airport codes are OAK and PHL.

ASSISTANT: Can I know your travelling dates?

USER: My planned travel dates are Apr 24th and Apr 26th.

ASSISTANT: Do you need a halt in between journey?

USER: Yes, I need a single halt in between my journey.

ASSISTANT: We found a flight on spirit airline, flight number as 1002 with the fare of 100.

USER: Ok, please proceed with  the ticket booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help in making my ticket reservation.

ASSISTANT: Thank you for availing us.

USER: You are welcome.