You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I help you today?

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

ASSISTANT: Ok, I am here to help you with that. Can I know you planned trip dates?

USER: My travel dates are June 13-15.

ASSISTANT: Ok, may I know your connection limit?

USER: I prefer to fly in connected flight.

ASSISTANT: Can I know your good name?

USER: Myself, Donald Moore.

ASSISTANT: Ok, please wait for a minute. Sorry to say that, there are no flights available based on your travelling dates.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your service.