You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know what kind of serves are you looking for?

USER: Please book a flight ticket from MSP to LGA to attend my sister's marriage.

ASSISTANT: Sure, I will help you. May I know your travel dates?

USER: My planned travel dates are Sept, 6 and Sept, 8.

ASSISTANT: Do you like connecting flight or direct flight?

USER: I need a direct flight.

ASSISTANT: What kind of class do you like?

USER: I prefer to economy class.

ASSISTANT: May I know your name please to proceed next?

USER: Dennis Moore here.

ASSISTANT: Do you have any other specifications?

USER: I need to depart at afternoon time.

ASSISTANT: Sorry, there is no flight on your prefer dates.

USER: That's ok, no issues.

ASSISTANT: Thank you.

USER: Thank you.