You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please let me know how may I aid you?

USER: Thank you for asking. I need your assistance in changing my recent reservation.

ASSISTANT: Sure, I will help  you to change the ticket details. Can you please tell me your good name to check the ticket status?

USER: Sure, my name is Samantha Davis.

ASSISTANT: Ok, can you please allow me sometime?

USER: For sure, I will allow  you.

ASSISTANT: I am really sorry to inform you that, there is no active reservation found with your name to change the details.

USER: Thant' ok. Thanks for your time.

ASSISTANT: You are welcome. Thank you for choosing us.