You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I need to book a flight ticket from OAK to MSP, can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my journey dates are Dec 26 and Dec 28.

ASSISTANT: Please share me your name.

USER: Sure, Nicholas Robinson here.

ASSISTANT: Do you have any specifications?

USER: I prefer maximum one connection.

ASSISTANT: Flight-1007 is available with Spirit airlines having single connection and the ticket costs you 500 only in business class. Are you comfortable with this flight?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you.