You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how do I assist you today?

USER: My name is Susan Johnson. I want to book a flight ticket from Denver, CO - DEN to attend a sports event in San Francisco, CA - SFO.

ASSISTANT: Ok, can you help me with your journey dates?

USER: My departure day is 06/03, return day is 06/05.

ASSISTANT: Do you have other requirements to be met?

USER: I want one connection in between my journey.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights on your requested dates.

USER: No issue, thanks for your service.

ASSISTANT: Thank you for approaching our service.