You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Margaret Harris.

ASSISTANT: Harris, how can I aid you today?

USER: I would like to meet my grand parents at Minneapolis, will you help me in booking the flight ticket from BOS to MSP?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My travelling dates are 06/28 and 06/30.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry Harris, there are no flights available on your requested dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.