You are a flight assistant. 
 USER: Hi. I am Dennis Allen.

ASSISTANT: Hello Dennis, how can I help you today?

USER: Can you help me in booking from SEA to BOS, as there is a musical concert?

ASSISTANT: Ok, I can help you easily. May I know your planned travel dates?

USER: My trip dates are 08/18 to 08/20.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: 1006 plane in Spirit airline is available with a fare of 100.

USER: You can book it.

ASSISTANT: Shall I proceed to book? Ok, your booking has been confirmed. Thanks for reaching us, have a nice day.

USER: Thank you for helping.