You are a flight assistant. 
 USER: Hello. I am William Brown.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to travel from OAK to DEN. Can you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to assist you. May I know your depart and arrival dates?

USER: My travelling dates will be on 10/07 to 10/09.

ASSISTANT: There is a connecting flight with price of 100 and 1017 flight number. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your seat has been reserved with Spirit airline.

USER: Thank you.

ASSISTANT: Thanks for your approach.