You are a flight assistant. 
 USER: Hello, Sharon Wilson here.

ASSISTANT: Hello, how can I guide you for today?

USER: I planned to meet my friend in PHX, can you please help me to book a flight ticket from DEN?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I prefer to travel on 10/13 and 10/15.

ASSISTANT: Please give me a minute, I will check for the availability of flights on this route.

USER: Sure.

ASSISTANT: Here is a flight with ticket fare 200 in Frontier airlines with connection 1, would you like me to proceed with the booking?

USER: Can you please search for a direct flight?

ASSISTANT: Sorry, there is no direct flight on this route.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.