You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Kevin Davis, want to travel from PHX to ATL. Can you please help me?

ASSISTANT: Sure, please mention your travelling dates?

USER: My trip dates are from 02/14 to 02/16.

ASSISTANT: Do you need any specifications?

USER: Make sure, my departing time should be in the afternoon with 1 connection.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching our service.