You are a flight assistant. 
 USER: Hello. I am Jonathan Martinez.

ASSISTANT: Hello, how may I help you?

USER: I want to participate in NBA tournament in OAK. Can you book me a ticket from MSP?

ASSISTANT: Sure, can I know your travelling  dates?

USER: I would start on Aug 10th and return Aug 12th.

ASSISTANT: Do you have any particular time for departing and returning?

USER: Yes, I would like to depart in the afternoon.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I need a connecting flight only.

ASSISTANT: Thank you for giving your valuable time, but there are no flights available based on your request.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for opting us, we hope to serve you again with better features.