You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Can I have your journey dates?

USER: Sure, I want to depart on Aug 30 and need to return on Sept 1.

ASSISTANT: Do you need any connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: My depart time must be in the afternoon.

ASSISTANT: There are no flights available on your routes.

USER: Ok, not an issue.

ASSISTANT: May I know your name for documentation purpose?

USER: Emily Thompson here.

ASSISTANT: Thank you.

USER: Thank you for the information.