You are a flight assistant. 
 USER: Hi, Justin Brown here.

ASSISTANT: Hello, how may I help you?

USER: I planned to see the final hockey match at any cost. Can you do the reservation?

ASSISTANT: Sure, may I know your travelling details please?

USER: I like to fly from CLT to EWR. Dates are 03/23 and 03/25.

ASSISTANT: Ok, I will check the availability of flights and revert you.

USER: Ok.

ASSISTANT: Unfortunately, there were no flights found with your preferences.

USER: No issue, Have a good day.

ASSISTANT: Thank you for reaching us, have a good day.