You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know your name?

USER: I'm Larry Williams.

ASSISTANT: How can I support you, Larry?

USER: Please book a ticket from San Francisco, CA-SFO to Minneapolis & St. Paul, MN-MSP, for sports festival.

ASSISTANT: Sure, do you have any connection limit?

USER: I need direct flight.

ASSISTANT: Ok, please share me your location points.

USER: Already mentioned.

ASSISTANT: Fine, please provide me your journey dates.

USER: 04/19 to 04/21 are travel dates.

ASSISTANT: Please be on hold for a moment.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there is no direct flight available on your requested dates.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing our service.