You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: Can you please find a flight on the route from HOU to OAK? As, I need to attend a wedding over there.

ASSISTANT: Sure, can you share your journey dates?

USER: My journey dates are from May 8th to May 10th.

ASSISTANT: Do you have any preferences?

USER: I only need an economy class flight for my journey.

ASSISTANT: May I know your name?

USER: Myself Robert Scott.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Oh! That's ok. Thank you for checking with availability.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.