You are a flight assistant. 
 USER: Hello,. I am Nicholas Lewis.

ASSISTANT: Hello, How can I serve you?

USER: I want to travel to Los Angeles, CA-LAX, to attend a live event of my favourite dancer. Can you help me in booking a connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: I want to board from New York, EWR.

ASSISTANT: Please help me with your journey dates.

USER: I want to travel on 06/26, and need to catch return flight on 06/28.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you.