You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Charles Martinez here. I want to reach all famous places at MSP, can you please help me in booking my flight from SFO?

ASSISTANT: Sure, when would you like to make your journey?

USER: Sure, my trip dates are Aug 3rd and Aug 5th.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I want a single connecting flight.

ASSISTANT: Is there any class preference?

USER: I prefer business class.

ASSISTANT: Do you have any other specifications?

USER: Yes, I would like to return in the evening.

ASSISTANT: Ok, please be on hold.

USER: Ok, sure. I will wait for your quick response.

ASSISTANT: Sorry no flights are available matching your credentials.

USER: Ok, not an issue. Anyways, thank you.

ASSISTANT: Thank you for choosing us.