You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you today?

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

ASSISTANT: Sure, can you please share your travel dates?

USER: My planned travel dates are Oct 28-30.

ASSISTANT: May I know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I want to return in the morning.

ASSISTANT: May I know your name to proceed further?

USER: Myself, Stephen Martin.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for contacting us.