You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I need to travel to DEN for business deal, can you please reserve my flight ticket from SEA?

ASSISTANT: Sure, let me know your journey dates?

USER: Ok, my travelling dates are from Jul, 08 to Jul, 10.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a connecting flight to travel.

ASSISTANT: Do you have any other specifications?

USER: Yes, I used to prefer business class to travel.

ASSISTANT: Can I know your name?

USER: Sure, my name is Daniel Hernandez here.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.