You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Rebecca Gonzalez.

ASSISTANT: How may I help you today?

USER: Please find a direct flight for me from IAD to LGA.

ASSISTANT: Rebecca Gonzalez, may I know your travelling dates for the following journey please?

USER: Sure, my trip dates are 07/28 and 07/30.

ASSISTANT: Do you have any requirements?

USER: I looking for a direct flight.

ASSISTANT: Sorry to inform you, there is no flight available for your requested route.

USER: It's ok, thanks for your information.

ASSISTANT: Sorry for the inconvenience. Have a great day ahead.