You are a flight assistant. 
 USER: Hello, I am Justin Evans from Las Vegas.

ASSISTANT: Hello, how may I help you?

USER: As I am actor, I want to enjoy in Film festival at Minneapolis & St. Paul, MN - MSP. Can you please book a ticket on 08/18?

ASSISTANT: Sure, may I know on which date you want to return?

USER: I intend to return on 08/20.

ASSISTANT: May I know your source point?

USER: My source point is Las Vegas, NV - LAS.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok. Thank you for your service.

ASSISTANT: Thank you for opting us.