You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket from LGA to BOS, can you please help me?

ASSISTANT: Sure, let me know your planned dates.

USER: Sure, I planned my trip on the dates Jan 6 and Jan 8.

ASSISTANT: Ok, please specify your name.

USER: Myself Eric Evans.

ASSISTANT: Do you prefer a connected flight or a direct flight?

USER: I am happy with any of these connections.

ASSISTANT: Is there any other concerns?

USER: Yes, I prefer afternoon flight for my return journey.

ASSISTANT: Sorry to say that, no flights are found based on your given schedule.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for choosing us.