You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Kathleen Clark. I planned to travel from New York to Boston. Can you please help me for that?

ASSISTANT: Sure Clark, can I know your destination and journey details?

USER: My origin airport code is NY-JFK and destination airport code is MA-BOS. My departure date is 04/20 and return date is 04/22.

ASSISTANT: Give me a moment.

USER: Make sure my price limit is 5000 and the connections limit is 1.

ASSISTANT: Sorry Clark, I didn't find any flight basing on your details.

USER: Thanks for your help.

ASSISTANT: You are welcome.