You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my uncle at Chicago, please help me in booking a ticket from JFK to ORD.

ASSISTANT: Sure, please share your journey dates?

USER: My planned journey dates are on Apr 11 and Apr 13.

ASSISTANT: Do you have any specifications?

USER: I prefer normal-cost airlines.

ASSISTANT: Is there any class preference?

USER: I am fine with any class.

ASSISTANT: May I know your good name?

USER: My name is Margaret Lee.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us.