You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking of a flight ticket?

ASSISTANT: Sure, can I know the travel details please?

USER: Yes, I want to travel from MCO to PHX. And my travelling dates are from 08/13 to 08/15.

ASSISTANT: Can I know your name please?

USER: Yes, I'm Donna Hernandez.

ASSISTANT: Sorry Donna, there are no flights available as per your request.

USER: Its Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.