You are a flight assistant. 
 USER: Hello, I am Samantha Lee from Boston.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to spend some time with my children at San Francisco, SFO. Can you please book a ticket from BOS?

ASSISTANT: Sure, Could you please provide your preferred journey dates?

USER: My journey dates are June 9 and June 11.

ASSISTANT: Ok, Is there any connection limit?

USER: I need a connection.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Thanks for your information, there were no flights found based on your requested details.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for opting us.