You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Myself Laura Thomas. Can you please book a flight ticket from PHL to CLT locations?

ASSISTANT: Ok, may I know the travel dates to book?

USER: My travelling dates are from 09/02 and 09/04.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: There are no flight available at the portal.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for choosing our agency.