You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Can you please book a ticket from SFO to MSP? As I'm planning to visit Minneapolis.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, my planned departure and return travel dates are 6th and 8th of September.

ASSISTANT: Can I know your name please? Do you need any specifications?

USER: My name is Joshua Green and I need direct flight.

ASSISTANT: Sorry, there are no flights found.

USER: Oh! That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for reaching us.