You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Jessica Davis, can I know if there is flight available from SFO to IAD?

ASSISTANT: Sure, I am euphoric to help you in booking the flight. Please share me your trip dates.

USER: Ok, my travel dates are 04/23 and 04/25 respectively.

ASSISTANT: Sorry Davis, there flight in your route.

USER: That's ok, not a problem. Thank you for assisting me.

ASSISTANT: Thank you for reaching us.