You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: I am planning to meet my uncle in SEA, so please help me in booking a flight ticket from DCA.

ASSISTANT: Sure, do you need a stopover in between your journey?

USER: Yes, I need a single connection.

ASSISTANT: Could you please share your trip dates?

USER: I would like to fly on Nov 07 and return on Nov 09.

ASSISTANT: May I know your good name?

USER: Myself Ronald Thomas.

ASSISTANT: Is there any more specifications?

USER: I would like to prefer the business class.

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

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.