You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to attend my convocation ceremony, so please book my ticket from ORD to OAK.

ASSISTANT: Sure, may I know your travel dates?

USER: My itinerary dates are 10/02 and 10/04.

ASSISTANT: Here is a connecting flight is available and airfare is about 300. Can I proceed further in booking?

USER: Please reserve my ticket.

ASSISTANT: Your ticket has been confirmed for the flight 1027 in Spirit airlines.

USER: Thank you for assisting me.

ASSISTANT: Thank you for opting us.