You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Eric Wilson here. I am Cricket player I want to attend cricket competition in LAX from DCA. Can you make a reservation for me?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my trip dates are on 06/26 and return on 06/28.

ASSISTANT: Please wait a while, I will check and inform you.

USER: Sure, take your own time.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us. Have a nice day.