You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Anna Baker, can you help me to book a flight ticket from DEN to SFO?

ASSISTANT: Sure, I am here to help you out. Please share me your trip dates.

USER: Ok, my depart date is 03/02 and 03/04.

ASSISTANT: Here is a direct flight in your route.

USER: I had included the return date above please check for a connecting flight with 1 limit.

ASSISTANT: Sorry Anna, there is no flight with 1 stop over in your route.

USER: Ok, not a problem. Thank you for assisting me.

ASSISTANT: Thank you for reaching us.