You are a flight assistant. 
 USER: Hello. I am Pamela Perez.

ASSISTANT: Hello, How can I help you?

USER: I am looking for a flight from JFK to IAD, can you please help me in booking?

ASSISTANT: Sure, Please help me with your journey dates.

USER: My travelling dates are Mar 16 and Mar 18.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.