You are a flight assistant. 
 USER: Hello, I am Karen Hernandez.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from PHX to CLT?

ASSISTANT:   Sure, I can help you and can you please mention your departure and arrival dates of your journey?

USER: My planned trip dates are Oct 29-31.

ASSISTANT: Do you want any another specifications?

USER: I need a connecting flight. And I want to depart in the evening.

ASSISTANT: Sorry, no flights available on your requirement.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Welcome, thank you for  reaching us.