You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Carol Thomas here. My client meeting got postponed, so I want to reschedule my itinerary travel dates. Could you help me out?

ASSISTANT: Sure, I am here to help you. Please wait for a while, let me check your reservation status.

USER: Take your time.

ASSISTANT: Thomas, I have not found any reservation by your name in our database.

USER: No problem, thank you for the information.

ASSISTANT: You are welcome and thank you for choosing us.