You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service today?

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

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are from Oct 19 to Oct 21.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Please help me with your name for booking.

USER: My name is Emily Lopez.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, No issues, thank you.

ASSISTANT: Thank you for reaching us.