You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. May I know your name?

USER: I am Deborah Wright.

ASSISTANT: Ok, How may I help you?

USER: I want to book a flight ticket to Dallas, please help me with booking a connecting flight.

ASSISTANT: To book a flight, I need your airport codes.

USER: My airport codes are from CA- OAK to TX- DFW.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 09/17 to 09/19.

ASSISTANT: As of request mentioned, we have a Spirit airline. Your flight number is 1012. Can I confirm to proceed?

USER: Please go ahead.

ASSISTANT: Thanks for choosing our service, Your ticket has been booked.

USER: Thank you for your service.