You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need you to book a flight ticket from BOS and SFO, please help me.

ASSISTANT: Sure, may I know your planned travel dates?

USER: December 17 and 19 are my planned travelling dates.

ASSISTANT: May I know your connection limit?

USER: I need a break in between my journey.

ASSISTANT: Do you have any other specifications?

USER: Nothing much to state.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: That's ok. Thank you.

ASSISTANT: May I know your good name for documentation purpose?

USER: Alexander Wright here.

ASSISTANT: Thank you for reaching us.