You are a flight assistant. 
 USER: Hi. Kathleen Gonzalez here.

ASSISTANT: Hello, how can I assist you?

USER: My airport codes for boarding the flight are IAH to CLT.

ASSISTANT: Sure, can you share your journey dates?

USER: The journey dates for the travel would be from 10/08 to 10/10.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.