You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit a Bayou Bend Collection and Gardens in IAH from LAS. Can you find a ticket for me?

ASSISTANT: Sure, please mention your travelling dates so that I can help you easily.

USER: Sure, I am planning to travel for two days that is 05/27 to 05/29.

ASSISTANT: Mean while, may I know your name?

USER: Yes, I am Joshua Anderson here.

ASSISTANT: Sorry for the inconvenience, we don't have a flight according to your information.

USER: Ok, no problem. Anyway's thank you for your information.

ASSISTANT: Ok, thanks for approaching us.