You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Katherine Williams here. Can you please help me in booking a flight from DTW to IAH?

ASSISTANT: Sure, let me know your travelling dates?

USER: Sure, my travel dates are from July 30 to Aug 01.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Please wait for a while.

USER: Please make sure that my return time must be in the evening.

ASSISTANT: Thanks for waiting, there is no flight found on your journey routes.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for availing us.