You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: Yes, I am Dorothy Campbell.

ASSISTANT: Ok Campbell, what service you are expecting from us?

USER: I am planning to attend a School Inauguration Function in DCA from EWR. Can you find a ticket for me?

ASSISTANT: Ok, I will help you. Could you please share your travel dates?

USER: Sure, I want to travel on these days 03/17 to 03/19.

ASSISTANT: Ok, please wait a while. I will check for the flights. Sorry to inform you, there are no flights available with your planned dates.

USER: Ok, thank you for your information.

ASSISTANT: You are welcome. Thank you for consulting us.