You are a flight assistant. 
 USER: Hi, I am James Thompson.

ASSISTANT: Hello, James Thompson. How can I aid you today?

USER:  I planned to visit Minute Maid park with my wife,Could you please book a ticket on 07/24 from LAS.

ASSISTANT: Sure. May I get your destination point?

USER: I planned to return from Houston IAH  ON 07/26 to LAS.

ASSISTANT: Ok, Wait for a while. Thanks for waiting.

USER: Ok.

ASSISTANT: Unfortunately, We could not find any flight with your specified details. Thank you for reaching us.

USER: Thank you for your information.

ASSISTANT: Have a great day.