You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a ticket from BOS to LAX. Could you book a ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: Trip dates are Aug, 30 and Sept, 1.

ASSISTANT: May I know your name please?

USER: My name is Patrick Brown.

ASSISTANT: Could you please provide the departure and return time?

USER: Return time should be afternoon.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Thank you.

ASSISTANT: Thank you for approaching us.