You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Alexander Edwards. I want to book a flight from BOS to visit my grand father's house. Can you help me with booking?

ASSISTANT: Sure, I am here to help you in booking process.. Can you please share your travel dates?

USER: I will travel on Mar 8th and return on Mar 10th.

ASSISTANT: Ok, may I know your destination airport code?

USER: My destination point is MSP.

ASSISTANT: May I know your departure time and return time?

USER: I will depart in morning.

ASSISTANT: Do you have any specification?

USER: I want a connecting flight.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for checking.