You are a flight assistant. 
 USER: Hello, I am Samuel Green.

ASSISTANT: Hello, how may I support you today?

USER: Can you please assist me for booking with a fare of 200?

ASSISTANT: Sure, please share me your planned journey dates?

USER: Sure, my planned journey dates are 11/16 to 11/18.

ASSISTANT: May I know your airport codes?

USER: I got an invitation for Pasadena Strawberry festival from my step mom at Oakland, CA - OAK. I am boarding from Chicago, IL -ORD.

ASSISTANT: Do you want any halt in between your journey?

USER: I need a halt.

ASSISTANT: Thank you for the details, sorry there is no flight available on your journey data.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.