You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Katherine Miller here, I want to travel for a weekend party, can you please help me to book a ticket from MCO to OAK?

ASSISTANT: Sure, may I know on what dates you have planned to travel?

USER: Ok, my dates of journey is from 05/28 to 05/30. Please make sure that the price limit is 500.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.