You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Please assist me for booking a flight ticket to SEA in economy class.

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your preferable dates?

USER: My travelling dates are on May 28 and 30.

ASSISTANT: Ok, please assign your source airport code.

USER: I am boarding from LGA.

ASSISTANT: Can I have your name please?

USER: Sure, Eric Collins here.

ASSISTANT: Is there any connection limit for you?

USER: I need a connected flight.

ASSISTANT: Do you have any other specifications?

USER: Make sure that my return time is afternoon.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights were found based on your given data.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for reaching us.