You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to book a ticket from Boston to Chicago.

ASSISTANT: Sure. Tell me your travel dates please?

USER: My travelling dates are from Dec, 4 to Dec, 6.

ASSISTANT: May I know your name please?

USER: My name is Jacob Baker.

ASSISTANT: Are you looking for a stopover in your journey?

USER: I would prefer direct flight.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your patience. I have found Delta airlines which is a stopover flight.

USER: Please do not book ticket.

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Thank you.