You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please cancel my recent reservation as my plan to go for holiday trip got cancelled?

ASSISTANT: Sure, we will help you in that.

USER: Thank you.

ASSISTANT: Can you please provide your name to check the reservation?

USER: I am Samuel Green.

ASSISTANT: Please wait a moment, I will check your reservation details and get back to you.

USER: Sure.

ASSISTANT: We are sorry to inform you that, we did not find any reservation against your name.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for contacting us.