You are a flight assistant. 
 USER: Hello, I am Joseph White.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight from SEA to IAH to meet my friend, can you please help me to book a flight with single connection?

ASSISTANT:  May I know your travel dates?

USER: My trip dates are 08/23 to 08/25.

ASSISTANT:  Do you have any price limit?

USER: My price is 500.

ASSISTANT:  Ok, please wait.

USER: Ok.

ASSISTANT:  Sorry, only direct flights are available between your journey.

USER: No, do not proceed.

ASSISTANT:  Thank you for opting us.

USER: Thanks for your service.