You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Gonzalez.

ASSISTANT: How can I aid you at this moment?

USER: I would like to attend a seminar at BOS, can you help me to book a flight ticket from SFO?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I am travelling from Nov 09 to Nov 11.

ASSISTANT: Do you need any halt in this journey?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Ryan Gonzalez, there are no flight services available on this route on your provided dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.