You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am David Evans, can you help me to search for a connecting flight from JFK?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are Jan 30 and Feb 01.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is EWR.

ASSISTANT: Do you have any preferences? Sorry, there is no flight available on your route on your requested dates.

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

ASSISTANT: You are welcome, have a nice day.