You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you aid me in booking a flight ticket from OAK to ORD?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I would like to go on July 11th and return back on July 13th.

ASSISTANT: Do you have any specifications?

USER: Ensure it is a single connecting flight.

ASSISTANT: Please share me your name.

USER: Myself Michael Campbell.

ASSISTANT: Flight-1000 is available with Spirit airlines having single connection and the ticket costs you 200 only in economy class. Are you comfortable with this flight?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you.