You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Charles Parker. I would like to book a ticket to Houston, can you please help me out?

ASSISTANT: I am glad to help you about your flight ticket booking. Can you please provide your planned dates of journey?

USER: I am travelling on these dates 02/25 and 02/27.

ASSISTANT: Can you please specify your location airport codes?

USER: I am flying from LAX to IAH.

ASSISTANT: There is a flight which costs 100 which is provided by UA airline in the flight 1006 having a single connected flight. Would you like to book this flight for your journey?

USER: No, don't proceed with this flight. I need a direct flight.

ASSISTANT: Sorry Parker, there is no flights having a direct connection on your planned dates of journey.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome, hope you have a nice day.