You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am Shirley King. I want to make a trip from MCO to OAK to meet my grand parents. Can you please help me to book a flight?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I want to start my journey on Oct 22 and need to end it on Oct 24.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a stopover in between journey.

ASSISTANT: Sorry, there is no flight available on your journey dates.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: You are welcome, have a nice day.