You are a flight assistant. 
 USER: Hi, I am Ryan Williams.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking a flight from SEA to BOS?

ASSISTANT: Sure, I am here to help you with that. Can you please share your travelling dates?

USER: My trip dates are on Mar 5th to 7th.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I would like to return in evening time.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry to say that, there are no flights found on this route as per your travel dates.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.