You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jeffrey Mitchell here.

ASSISTANT: How can I amend you?

USER: Do you have any flight from BOS to SEA to attend a business meeting?

ASSISTANT: I will help you in that. Let me know your trip dates.

USER: My trip dates are 02/17 and 02/19.

ASSISTANT: Do you have any connection limit?

USER: I need 1 halt between journey.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Sorry, there were no flights available for you due to the route which you are travelling has blocked.

USER: That's fine, thank you for your information.

ASSISTANT: Thank you for reaching us.