You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I am Dorothy Lewis. I am one of the best hacker in my company, unfortunately my Houston branch websites was hacked by some one. So, they called me to solve that problem. Can you help me in my booking?

ASSISTANT: Sure, I am here to help you. Can I know your airport codes please?

USER: My source airport code is New York, NY - JFK. My destination is HOU.

ASSISTANT: When do you want to travel?

USER: I will start my journey on 04/17. I will back on 04/19.

ASSISTANT: Please, wait for a while.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting. Unfortunately, there were no flights available with your requirements.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for contacting us.