You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Emily Anderson here.

ASSISTANT: Anderson, how can I assist you today?

USER: I want to travel from MI-DTW to WA-SEA, to visit the famous places at Seattle. Can you please help me to book a ticket?

ASSISTANT: Sure, can you provide me your travel dates?

USER: My starting and return dates are from 05/05 to 05/07. I want a direct flight.

ASSISTANT: Please be on hold, let me check for the available flights.

USER: Sure.

ASSISTANT: I am sorry, there are no direct flight available on 05/05.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Welcome.