You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to meet my friend at Charlotte, will you help me in booking the ticket from PHL to CLT?

ASSISTANT: Ok, may I know your travelling dates?

USER: My preferable journey dates are 01/16 and 01/18.

ASSISTANT: May I know your name ?

USER: Myself Raymond Harris.

ASSISTANT: Sorry, no flights found on your preferable dates.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for providing me the information.