You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you today?

USER: My name is Deborah Phillips. I am planning to travel from IAD to JFK for a business meeting, can you please help me with booking a flight ticket?

ASSISTANT: Deborah Phillips, may I know your trip dates?

USER: The travel dates are from 05/14 to 05/16.

ASSISTANT: No flights were found on your requested dates. Thanks for reaching us.

USER: That's ok, thank you for your help.

ASSISTANT: Have a great day.