You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Kimberly Scott, can you help me to book a flight ticket to LAX from MCO?

ASSISTANT: Can you please tell your travelling dates?

USER: Ok, my travel dates are 05/21 and 05/23 respectively.

ASSISTANT: Sorry, there are no flights available with your travelling details.

USER: Ok, not a problem. Thank you for the help.

ASSISTANT: Thank you and have a nice day.