You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brenda Johnson.

ASSISTANT: How may I aid you today?

USER: I need to book a flight ticket with direct flight, Can you please help me for booking from ORD to IAH?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please forward the travel dates?

USER: I would like to travel on 11/14 to 11/16.

ASSISTANT: Do you have any other requirements?

USER: I need a price limit with in 500.

ASSISTANT: Thanks for providing the journey details, unfortunately no flights will run to your routes due to heavy rainfalls.

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

ASSISTANT: Thank you for approaching us, Have a nice day.