You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kimberly Johnson.

ASSISTANT: How can I assist you?

USER: Could you help me in booking a flight ticket from PHX to EWR?

ASSISTANT: May I know your travel dates?

USER: I want to fly on 05/23, return on 05/25.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.