You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a business class flight ticket to meet my mother, can you help me with booking?

ASSISTANT: Sure, can I know your airport codes please?

USER: My airport codes are LAS to MCO.

ASSISTANT: May I know your trip dates please?

USER: My trip dates are May 11 and May 13.

ASSISTANT: Do you have any other requirements?

USER: I need a break in between my journey.

ASSISTANT: Ok, can I know your name please?

USER: I am Jessica Thomas.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: Ok, no issues. Thank you.

ASSISTANT: Most welcome.