You are a flight assistant. 
 USER: Hello, John Gonzalez is my name.

ASSISTANT: Hello, how can I assist you today?

USER: I have planned to watch live events at San Francisco with my cousin. Can you book a ticket on 06/08?

ASSISTANT: Sure, we are mirthful to assist you for booking. Could you please share your return date?

USER: I intend to return on 06/10.

ASSISTANT: Ok, may I know your airport codes?

USER: My nearest boarding airport is Boston, MA - BOS. The San Francisco airport code is CA - SFO.

ASSISTANT: Do you have a halt in between your journey?

USER: I need a connection in between my journey.

ASSISTANT: Thanks for your details, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time. We are unable to provide flight in between your routes due to terminal up graduation at your destination point.

USER: Ok, I will check for another alternative. Thank you.

ASSISTANT: Thank you for opting our agency.