You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Kenneth Wilson from Houston. I am planning to attend Tennis competition in EWR from HOU. Can you find a flight ticket for me?

ASSISTANT:  Can you please provide your journey dates for better search of flights availability with your requirement?

USER: Sure, my planned trip dates are on 11/19 and back on 11/21.

ASSISTANT: Sorry, I could not find any flight with your travel dates.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thanks for choosing us, have a nice day.