You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I amend you today?

USER: I am Lisa Gonzalez. As I am a teacher, I wish to host a Storytelling Festival in my school. Can you help me to book a flight ticket to Washington DC - DCA.

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my trip dates are 10/01 and 10/03.

ASSISTANT: Where are you travelling from?

USER: My starting point is Atlanta, GA - ATL.

ASSISTANT: Do you need any other requirements?

USER: Yes, I need a connecting flight in between my journey.

ASSISTANT: Sorry to inform that there is no flight found on your requested dates.

USER: Ok, no problem.

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

USER: Thank you for your service.