You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: Please book a ticket from Chicago, IL-ORD to Oakland, CA-OAK.

ASSISTANT: Sure, I am here to help you. Could you please help me with your travelling dates?

USER: Ok. My travelling dates are from 09/06 to 09/08.

ASSISTANT: May I know your name?

USER: My name is Mark Martinez.

ASSISTANT: We found a flight with couple of connections and fare of 100. Shall I proceed with booking?

USER: Please book flight with connections limit 1.

ASSISTANT: Sorry, no single connecting flights available on your requested travelling dates.

USER: Thanks.

ASSISTANT: Thank you for approaching us, have a nice day.