You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Could you please book a flight ticket from EWR to MSP as I want to attend a music festival?

ASSISTANT: Sure, please provide your trip dates.

USER: I want to travel on Aug 14 and return back on Aug 16.

ASSISTANT: Do you need any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: My name is John Davis.

ASSISTANT: There are no flights available on your routes.

USER: No problem, thank you.