You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Hernandez.

ASSISTANT: How can I help you?

USER: I am planning to visit ATL to meet my father, can you please help me in booking a flight ticket from HOU?

ASSISTANT: Sure, I will help you. Can you please provide me your travelling dates?

USER: My planning dates are from 06/03 till 06/05.

ASSISTANT: Sorry, there is no flight is available for you on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome.