You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Gregory Phillips. I want to travel from CLT to IAH, can you find me a direct flight to me?

ASSISTANT: Sure, can I know the travel dates please?

USER: My trip dates are from 07/27 till 07/29.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: Sorry, there are no direct flights on your route.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Thank you for choosing us.