You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Robert Anderson. I have a plan to meet my friend in Los Angeles. Can you help me for booking a flight ticket from SEA to LAX?

ASSISTANT: Sure, I am here to help.

USER: Thank you.

ASSISTANT: Please share your travelling dates.

USER: My travelling dates are Mar 01 and Mar 03.

ASSISTANT: Do yo have any class preference?

USER: I need a direct flight in my journey.

ASSISTANT: Please share if you have any other request related to your journey.

USER: No.

ASSISTANT: Sorry to inform you that there is no direct flight available on given dates by you.

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

ASSISTANT: Thank you, we hope to serve you better next time.

USER: Welcome.