You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Lisa Johnson. I want to book a flight ticket from PHX to DEN, can you help me with booking?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My travel dates are July 19 and July 21.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Please mention your depart and return flight timing?

USER: My return time is morning.

ASSISTANT: Do you have any other limitation?

USER: No.

ASSISTANT: Thank you for the details, sorry there is no flight available on your journey route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us, we hope see you again.