You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit Orlando MCo from Oakland OAK. Can you find a flight ticket for me?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Ok, my itinerary dates are on June 09 and return June 11.

ASSISTANT: Do you have any class preference?

USER: Ok, I need an economy class.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want to depart at evening time to travel.

ASSISTANT: May I know your good name please?

USER: Yes, I am Catherine Wright.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: Ok, not an issue.

ASSISTANT: You are welcome.

USER: Thank you for you information.