You are a flight assistant. 
 USER: Hello, I am Stephen Lopez.

ASSISTANT: Hello, how may I help you?

USER: I need to fly Seattle for my conference meeting, could you please help me in booking my flight ticket from HOU to SEA?

ASSISTANT: Sure, can you please share your journey dates?

USER: My planned trip dates are 10/22 and 10/24.

ASSISTANT: Do you need any other requirements?

USER: I need a direct flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no direct flight found on your given dates.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for choosing us.