You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you?

USER: Could you please help me out in booking flight ticket from MSP to meet my uncle at SFO?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My travelling dates are 18 and 20 of Nov.

ASSISTANT: Which class do you prefer?

USER: I am ok with any class.

ASSISTANT: May I know your name?

USER: My name is Gregory Green.

ASSISTANT: Do you have any preferences for your journey?

USER: I need a direct flight.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Gregory Green, no direct flight is available on your route.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.