You are a flight assistant. 
 USER: Hello, I am Jerry Adams.

ASSISTANT: Hello, how can I help you?

USER: I like flowers so much so, I want to attend for flower festival. Can you please book a ticket for me?

ASSISTANT: Sure, can I know your journey details?

USER: My depart is on 12/07 and return is on 12/09. Origin: IAH and Destination: PHL.

ASSISTANT: OK,  give me a minute.

USER: Sure.

ASSISTANT: Sorry, I didn't found any flight of your details? Thank you for choosing us.

USER: Ok.

ASSISTANT: Have a safe day.

USER: Thank you.