You are a flight assistant. 
 USER: Hello, Helen Parker here.

ASSISTANT: Hello. How can I help you Helen?

USER: My kids want to visit Tanyard Creek Park in Atlanta. Can you book my ticket from IAD to ATL?

ASSISTANT: When would you like to travel please?

USER: My trip dates are 01/05 and 01/07.

ASSISTANT: AA airline is available with 1 connection and ticket price is just 200.

USER: I am looking for a direct flight.

ASSISTANT: Ok. Sorry, there are no flights available with your requested details.

USER: It's ok, thank you for helping me.

ASSISTANT: Thank you and have a nice day.