You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Donna Perez.

ASSISTANT: How may I guide you for the day?

USER: I am looking for a flight from MSP to BOS, can you help me in booking the flight ticket from 05/19 and 05/21.

ASSISTANT: Donna Perez, do you have any other requirements?

USER: Sure, my price limit don't exceed 200.

ASSISTANT: Would you prefer business class or economy class for this journey?

USER: I am flexible with any of one class for my journey.

ASSISTANT: Flight-1000 is available for your journey with single stopover in between at the ticket price of 100, may I proceed with booking?

USER: That's fine , please proceed in booking.

ASSISTANT: Your booking is done, thank you for choosing us.