You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Can you help me in booking a flight ticket from DTW to IAH?

ASSISTANT: Sure, may I know your good name?

USER: I am Kenneth Jackson.

ASSISTANT: Could I have your trip dates, please?

USER: I want to travel on 05/02, and return on 05/04.

ASSISTANT: Please let me know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for opting us.