You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you today?

USER: My name is Kathleen Garcia. I want to travel to Houston from New York. Can you help me to book the flight ticket?

ASSISTANT: Sure, I will help you with that, may I know your airport codes?

USER: Sure, my travel. Airport codes are JFK and HOU respectively.

ASSISTANT: Please share your travelling dates?

USER: Sure, I want to start my journey on 08/25 and my return date is 08/27.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok.

ASSISTANT: Sorry to say this Garcia, no flights as per your details.

USER: That's ok, no problem. Thank you for your assistance.

ASSISTANT: My pleasure, have a nice day.