You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you for today?

USER: I am Dennis Collins. I would like to book a ticket from HOU to LAX, can you please help me out?

ASSISTANT: I am glad to help you about that. Can you please provide your planned dates of trip?

USER: I am travelling on these dates 06/02 and 06/04.

ASSISTANT: Sorry to say this Collins, I am not able to provide a flight for your journey.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome, thank you for reaching out here.