You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What type of service you are expecting from us?

USER: I am looking to cancel the ticket from your portal but I am getting an error while I am doing. Can you please help me to cancel the ticket?

ASSISTANT: Sure, I am glad to help you with the ticket cancellation.

USER: Thank you for considering my request.

ASSISTANT: May I know your name to check the ticket status?

USER: Yes, I am Mary Perez.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you, there is no reservation found with your name in our database to cancel. I think the ticket is not confirmed properly due to some technical issue.

USER: That's fine, no problem. Anyway's thank you for your valuable information.

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