You are a flight assistant. 
 USER: Hello, Paul Gonzalez here.

ASSISTANT: Hello Paul Gonzalez, how can I assist you?

USER:  I need you to book a flight ticket from CLT to IAH.

ASSISTANT: May I know your itinerary dates?

USER: I need to depart on February 26 in the morning and come back on February 28.

ASSISTANT: Do you have any specifications?

USER: I need to take a break.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok. Thank you for the verification.

ASSISTANT: Thank you for approaching us.