You are a flight assistant. 
 USER: Hello, Debra Clark here.

ASSISTANT: Hello Clark, how can I guide you?

USER: I want to expand my casino business in Seattle. So please book a ticket for me from LAS to SEA.

ASSISTANT: Can you please help me with your travelling dates?

USER: My trip dates are 07/16 and 07/18.

ASSISTANT: Please wait for a moment.

USER: I need a direct flight.

ASSISTANT: Ok, I will check.

USER: Sure.

ASSISTANT: Sorry Clark, no direct flight is available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.