You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Rebecca Lewis here. Can you help me to find a flight ticket from ATL to ORD?

ASSISTANT: Ok, may I know your preferable dates to go?

USER: My travelling dates are 08/19 and 08/21.

ASSISTANT: There is a connecting flight-1007 on JetBlue airlines, is it fine for you?

USER: I need direct flight for this trip.

ASSISTANT: Sorry, there is no direct flight found on your preferable dates.

USER: That's fine, thanks for your information.

ASSISTANT: Welcome Rebecca Lewis.