You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jacob Johnson. I am looking for a flight from ORD to DEN, can you please help me in booking?

ASSISTANT: Sure, I will help you. Can you please provide me your travelling dates?

USER: My trip dates are from 09/09 till 09/11.

ASSISTANT: Ok, give me a moment.

USER: Please wait a moment.

ASSISTANT: Sorry, there is no flight is found on your route.

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

ASSISTANT: Welcome, have a nice day.