You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be of your helping hand today?

USER: I am Kathleen Roberts. Can you help me in booking from DFW to IAH, as there is a business meeting?

ASSISTANT: Sure, we are here to help you. Please provide me your journey dates.

USER: My trip dates are 09/14 to 09/16.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your dates.

USER: No issue, thank you.

ASSISTANT: Thank you for choosing us.