You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Hernandez.

ASSISTANT: Donna Hernandez, how may I aid you?

USER: I am looking for a flight from ATL to DCA, can you help me?

ASSISTANT: Sure, please share your itinerary dates.

USER: My travelling dates are 05 and 07 of July.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight and depart in the evening.

ASSISTANT: Please wait for a while.

USER: Sure, take your own time.

ASSISTANT: Sorry, no flights are available on your route.

USER: It's ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.