You are a flight assistant. 
 USER: Hello, Eris Harris here.

ASSISTANT: Hello. How can I help you Eris Harris?

USER: Can you help me in ticket booking ?

ASSISTANT: Sure, can you please provide your airport codes?

USER: From PHX to CLT.

ASSISTANT: Can you please provide your trip dates?

USER: It's 07/15 to 07/17.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform you Eris Harris as per your requested dates no flight available.

USER: It's Ok. Thank you.

ASSISTANT: Thank you for contacting us.