You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know you name?

USER: I am Debora Nelson, I am planning a trip for my cousin's engagement from LAS -EWR can you find a ticket for me?

ASSISTANT: It's good to hear, could you provide your journey dates?

USER: Sure, my travelling dates are 03/20 to 03/22.

ASSISTANT: Sorry Nelson, we could not found any flight as per your requested information.

USER: OK, thank you.

ASSISTANT: OK, thank you for reaching us. Have a great day Nelson.