You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hi.

USER: I am Raymond Hernandez.

ASSISTANT: How can I assist you today?

USER: Can you find a flight from DEN to LAX, for attending a wedding in my aunt's home.

ASSISTANT: Sure Raymond, may I know your travel dates.

USER: Fine, my trip dates should be 08/29 and 08/31.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, here there are no flights available for your desired intents.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for opting us.