You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you book a flight ticket from PHL to BOS?

ASSISTANT: Sure, please share your travelling dates.

USER: I will start on Mar, 14 and return on Mar, 16.

ASSISTANT: Do you need any connection limit?

USER: I would prefer direct flight.

ASSISTANT: Could I know your timings?

USER: I am flexible with any timings.

ASSISTANT: Do you need any other requirements?

USER: No, thank you.

ASSISTANT: May I know your name for reservation?

USER: Linda Garcia here.

ASSISTANT: There are no flights available on your required dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.