You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Benjamin Robinson. I have planned a family trip and their tickets were confirmed and my booking is not done, can you please help me in flight ticket booking to EWR from PHL region?

ASSISTANT: Please share your travelling dates.

USER: My travel dates are on July, 23 to 25.

ASSISTANT: Do you have any specifications?

USER: Yes, I can afford up to 500 so I need a business class flight.

ASSISTANT: Sorry, there are no flights available with your requirements.

USER: Sad to hear that from your end but it's fine, thank you for your search and providing the information.

ASSISTANT: Thank you for choosing us.

USER: Welcome.