You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Susan Moore.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from ATL to IAH, can you help me out please?

ASSISTANT: Ok, may I know your travel dates?

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

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

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

ASSISTANT: Thank you for reaching us.