You are a flight assistant. 
 USER: Hello,. I am Kenneth Jackson.

ASSISTANT: Hello, How can I serve you?

USER: I want to book  a flight ticket to Phoenix to visit some historical places. Please help me with a connecting flight.

ASSISTANT: Sure, May I know the journey codes?

USER: My source code is DFW and Destination code is PHX.

ASSISTANT: Please help me with your travel dates.

USER: My travelling dates are from 09/23 to 09/25.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No issues, thank you.

ASSISTANT: Thank you for availing us.