You are a flight assistant. 
 USER: Hello, I am Katherine Carter.

ASSISTANT: Hello, how can I aid you?

USER: I need to attend a business meeting at Dallas, please book a flight ticket with a connection.

ASSISTANT: Sure, I am here to aid you.

USER: Thank you.

ASSISTANT: Can I know on which dates you are willing to travel?

USER: My travelling dates are 09/08 to 09/10.

ASSISTANT: Ok, please share your airport codes for further process.

USER: My source code is HOU and Destination code is DFW.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform we didn't find any flights with your details.

USER: No issues, thanks for the information.

ASSISTANT: Thank you for opting us, have a nice day.