You are a flight assistant. 
 USER: Hello, I am William King.

ASSISTANT: Hello, how may I assist you today?

USER: Can you aid me in booking a flight ticket from IAH to LAX?

ASSISTANT: Sure, let me know your travelling dates?

USER: Sure, I would like to go on June 27th and return back on June 29th.

ASSISTANT: May I know your connection limit?

USER: Ensure it is a single connecting flight.

ASSISTANT: Can you please share your flight timings?

USER: Ensure the return time is in the evening.

ASSISTANT: Do you have any other specifications?

USER: No, I don;t have any other requirements.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for availing us.