Hello.
user
Hello, how can I help you?
assistant
I want  to travel from HOU to LAS, can you help me to find a flight?
user
Sure. Please tell me your trip dates?
assistant
My trip dates are 05/07 and 05/09.
user
May I know your good names?
assistant
I am Sarah Lee.
user
Sorry Lee, no reservation found as per your details.
assistant
No issues, it's ok. Thanks for your checking.
user
Thank you for reaching us.
assistant