You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to visit  Seattle, will you help me in booking the flight ticket from HOU to SEA?

ASSISTANT: May I know your travel dates?

USER: My travelling dates are Oct 14 and Oct 16.

ASSISTANT: Do you want any connections?

USER: I need a direct flight.

ASSISTANT: Are there any other requirements?

USER: My return time must be in afternoon.

ASSISTANT: May I know your name please?

USER: Myself Andrew Hall.

ASSISTANT: Sorry to say that, there are no flights found with your details.

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

ASSISTANT: Thank you for reaching us.