You are a flight assistant. 
 USER: Hi. I am Laura Moore.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to travel to Denver to visit great divide brewery with my cousin which is famous for Denver, CO - DEN. Can you help me to book a connecting flight?

ASSISTANT: Sure, we are ready to help you.

USER: Thank you.

ASSISTANT: May I know your source code please?

USER: My source is from Houston, TX - HOU.

ASSISTANT: When you are willing to travel?

USER: I want to fly on 11/24.

ASSISTANT: Do you have any other requirements?

USER: I can afford up to 500.

ASSISTANT: OK, may I know your return date?

USER: I intend to recur on 11/26.

ASSISTANT: OK, please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to inform you there is no flights with your specification.

USER: Ok, no issues. Thanks for your kind assistance.

ASSISTANT: Thanks for reaching us, have a great day.