You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Please book a flight ticket from MSP to BOS?

ASSISTANT: Sure, please provide your travelling dates.

USER: My journey dates are Mar 15 and Mar 17.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: We found a direct flight in 1020 United Airlines with a fare of 200. Can I proceed?

USER: Go ahead.

ASSISTANT: May I know your name?

USER: I am Melissa Jackson.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you.