You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Could you please help me in booking a flight ticket from BOS to JFK?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are May 12 and May 14.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight. And I want to depart in the afternoon.

ASSISTANT: May I know your name?

USER: My name is Charles Miller.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found to depart in the afternoon.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.