You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you help me in booking a flight ticket from BOS to MSP?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel on 02/09, and return on 02/11.

ASSISTANT: Do you have any connection limit/.

USER: I need a direct flight.

ASSISTANT: Are there any preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Stephen Perez.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you.