You are a flight assistant. 
 USER: Hello. I am Rebecca Miller.

ASSISTANT: Hello, how may I aid you?

USER: I planned to attend for a seminar in ATL, can you please help me to book a flight ticket from PHL?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: I planned to travel on 12/04 and 12/06.

ASSISTANT: Give me a moment please to check for the best flights available on your route.

USER: Sure, take your time.

ASSISTANT: Sorry to say, no flights were found on your route.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your information.