You are a flight assistant. 
 USER: Hi. I am Anthony Edwards.

ASSISTANT: Hello, How can I assist you?

USER: I need to book a flight ticket from SEA to DTW, can you please help me for booking? Thank you.

ASSISTANT: Sure, Please help me with your travel dates.

USER: I would like to travel on 09/14 to 09/16.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for availing us.