You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket from DEN to SEA?

ASSISTANT: Sure, please share me your trip dates.

USER: I want to fly on June 10 and return on June 12.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a single connection.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Myself Joseph Scott.

ASSISTANT:  Is there any other specifications?

USER: No.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for connecting with us.