You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself Jeffrey Williams. Foe some issues I want to change my reservation, can you please help me?

ASSISTANT: There is a reservation on your name, may I know your desired travel dates please?

USER: Sure, I would like to travel on 08/12 and the return date is on 08/14 date.

ASSISTANT: Please share your preferred airport codes?

USER: My travelling locations are from SEA to DTW.

ASSISTANT: There is no flight available on your desired travel dates in your route.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for opting us.