You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia Martinez.

ASSISTANT: How can I help you?

USER: Help me in changing my recent reservation.?

ASSISTANT: Please wait a moment to check the reservation status.

USER: Sure.

ASSISTANT: Sorry, no reservation found by your name.

USER: No problem, thank you for your information.

ASSISTANT: Thanks.