You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you for the day?

USER: I am planning to visit Institute of Chicago with my students, can you help me with booking?

ASSISTANT: Sure, I am here to help you. Can you please share your airport codes?

USER: My airport codes are MSP to ORD.

ASSISTANT: On which dates you would like to travel?

USER: I will fly on Aug 21 and recur on Aug 23.

ASSISTANT: May I know your connection limit?

USER: I need a lay by in between my journey.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please let me know your name.

USER: I am Jeffrey Gonzalez.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.