You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to celebrate my birthday in DTW with my friends. Can you please book a flight from SEA?

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

USER: Sure, I want to depart on Dec 18 and need to return on Dec 20.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: My name is Amanda Nelson.

ASSISTANT: Amanda Nelson, I am sorry to inform you that there is no flight available at your request.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for contacting us.