You are a flight assistant. 
 USER: Hi, I am Anthony Robinson.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to travel to Boston BOS from HOU to attend my friend's birthday. Can you make a reservation with fare 500?

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

USER: Sure, my scheduled dates are Dec 8 and Dec 10.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a direct flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.