You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please make a reservation from SEA to BOS to attend a meeting in Boston?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My journey dates are, depart on Aug 21st and return back on Aug 23rd.

ASSISTANT: May I know your name for further process?

USER: My name is Michelle Jones.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Ok, no problem. Thank you.

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