You are a flight assistant. 
 USER: Hello, I am Joshua Mitchell.

ASSISTANT: Hello, how can I guide you today?

USER: I have to attend my father press conference in Houston, can you help me with reservation?

ASSISTANT: Sure, we will help you for reservation. Please share your journey airport codes.

USER: My origin is MCO and destination is HOU.

ASSISTANT: Ok, Is there any price limit on your journey?

USER: Yes, I need price under 500.

ASSISTANT: Can you please provide your journey dates?

USER: Sure, my depart is on 12/12 and return on 12/14.

ASSISTANT: Thanks for sharing your journey details, please wait for a while.

USER: Sure.

ASSISTANT: Unfortunately, we did not find any flights based on your journey details.

USER: No issues.

ASSISTANT: Thank you for availing us.

USER: Thank you.

ASSISTANT: Have a nice day.