You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travel dates are Oct 06 and 08.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I am comfortable with any flight.

ASSISTANT: May I know your good name please?

USER: I am Daniel Roberts.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us.