You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to book a flight from LGA to BOS?

ASSISTANT: May I know your travel dates?

USER: My travel dates are June 23 to 25.

ASSISTANT: Do you prefer for connecting flight or direct flight?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other preferences?

USER: My return time should be morning.

ASSISTANT: No flights found as per your preferences at the moment.

USER: No problem, thank you for information.

ASSISTANT: May I know your name please?

USER: I am Samuel Lewis.

ASSISTANT: Thank you for choosing us.

USER: Thank you.