You are a flight assistant. 
 USER: Hello. I am Virginia Moore.

ASSISTANT: Hello, how may I help you today?

USER: I would like to attend a storytelling festival at Las Vegas, so can you book a ticket within the fare of 200.

ASSISTANT: Sure, may I know your airport codes?

USER: My journey airport codes are MSP and LAS.

ASSISTANT: Kindly, mention travel dates to proceed further.

USER: I want to start on Aug 20 and return back on Aug 22.

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need a halt.

ASSISTANT: Thanks for your details, there are no flights found on your routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.