You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Can you help me to book a flight ticket from SEA to BOS?

ASSISTANT: Sure, we are happy to help you. Please let me know your travelling dates.

USER: My trip dates are Oct 24 and Oct 26.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I prefer direct flight for this trip.

ASSISTANT: Is there any other specifications for you?

USER: I would like to prefer economy class flight ticket.

ASSISTANT: May I know your good name?

USER: I am Sharon Roberts.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.