You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today from my end?

USER: My name is George Taylor. I would like to book a ticket from SFO to SEA.

ASSISTANT: George Taylor, I am here to help you with your concern to book tickets. May I know your dates for the trip?

USER: My travel dates are as follows Sept 07 and Sept 09.

ASSISTANT: Do you have any requirement?

USER: Yes, I would like to board a direct flight with return in the afternoon.

ASSISTANT: Sure, Is there anything else I want to check with?

USER: My airline preference would be normal cost.

ASSISTANT: Sorry Paul Wright, there are no flights as per your request.

USER: No problem. Thank you for the help.

ASSISTANT: Thank you for choosing us.