You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can i help you today?

USER: I want to attend my business meeting in Austin, can you help me in booking a flight ticket from Houston?

ASSISTANT: Sure, please share your planned travel dates?

USER: Sure, I want to take off on Oct 7th and my return day should be Oct 9th.

ASSISTANT: Can I have your name please?

USER: Benjamin Gonzalez here.

ASSISTANT: May I know the airport code for Houston?

USER: My airport code for Houston is HOU.

ASSISTANT: Any other requirements to be met?

USER: I am looking for a direct flight and my departure time should be during evening.

ASSISTANT: Sorry, no flights found with your given details.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you for reaching us.