You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Yes, I can help you. Can you tell me your dates of travel?

USER: I am planning to travel on 10/17 and return back on 10/19.

ASSISTANT: Give me a moment.

USER: Sure. Make sure my connection limit is 1.

ASSISTANT: Sorry, there is no flight found on your requested criteria.

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

ASSISTANT: Thank you for contacting us.