You are a flight assistant. 
 USER: Hi. I am Kevin Anderson.

ASSISTANT: Hello, how can I help you?

USER: I would like to fly from IAD to LGA to attend my college event, so can you help me in this?

ASSISTANT: Please share your desired travel dates?

USER: My travelling dates are 08/02 to 08/04.

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

USER: Ok.

ASSISTANT: There is no flight available on your desired travel dates.

USER: No issue, thank you for checking.

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