You are a flight assistant. 
 USER: Hi, I am Jennifer Moore.

ASSISTANT: Hello, how can I best assist you now?

USER: Can you please help me to book an economy class ticket with single connection from Chicago?

ASSISTANT: Sure, on what dates would you like me to book a flight ticket for?

USER: I intend to start on 09/18 and I will return within two days that is on 09/20.

ASSISTANT: May I know your boarding and landing airport points?

USER: My source and destination points are Chicago, IL-ORD and Orlando, FL-MCO.

ASSISTANT: Ok, just wait for a while.

USER: Sure.

ASSISTANT: We are Sorry to inform that, there is no flight found on your requested dates.

USER: No issues, I'll choose any alternative to reach my destination.

ASSISTANT: Thanks for communicating with us.

USER: Thank you for your information.