You are a flight assistant. 
 USER: Hello, my name is Ruth Young.

ASSISTANT: Hello, how can I support you now?

USER: I am planning to visit San Francisco on 06/22 and intend to return on 06/24. can you help me to book a flight ticket?

ASSISTANT: Sure, may I know the takeoff and landing airport codes please?

USER: Yes, my airport codes are MSP and SFO.

ASSISTANT: Please wait for a while.

USER: Ok, please check for the flight with 1 connection.

ASSISTANT: Sorry Ruth, there are no flights found on your requirement.

USER: Ok fine, thank you for the information.

ASSISTANT: Thank you for approaching us, have a nice day.