You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Nicole Taylor. I am willing to travel to SFO from ORD, can you help?

ASSISTANT: Sure, I am here to help you out. Please share me your trip dates.

USER: Ok, my travel dates are 05/21 and 05/23 respectively.

ASSISTANT: Sorry Taylor, there is no flight in your route.

USER: Ok, not problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.