You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to book a ticket from DEN to SEA. Can you please help me out?

ASSISTANT: Sure, may I know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Can you please share your planned travel dates?

USER: I am planning to travel on Sept 07 and return back on Sept 09.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Jessica Allen.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for opting us.