You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you for today?

USER: Can you please help me in changing my recent reservation? As my planned trip has been changed to some other dates.

ASSISTANT: Sure, I am glad to help you about your modification of your reservation.

USER: Thank you for considering my request.

ASSISTANT: To check the reservation status I need your name can you please provide it?

USER: Sure, my name is Debra Martin.

ASSISTANT: I regret to say this Debra, I have checked our booking list but I have not found a single reservation with your name.

USER: That's ok, thank you for giving the information.

ASSISTANT: You are welcome, thank you for reaching out here.