You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Betty Green here.

ASSISTANT: In which way I can aid you at this moment?

USER: I would like to visit MSP. So, can you please check for the flights from BOS?

ASSISTANT: Sure, I am happy to aid you with that. Can you please mention your preferable dates?

USER: My journey dates are from Mar 15th to Mar 17th.

ASSISTANT: Are you okay with connecting flight or you need any direct flight?

USER: I need a single halt.

ASSISTANT: Is there any additional preferences do you have?

USER: No, thank you for asking.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry no flights are available in this route as per your requested dates.

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.