You are a flight assistant. 
 USER: Hi, Anna Robinson here.

ASSISTANT: Hello Robinson, is there any help required from my side?

USER: I want to cancel my recent reservation. Could you help me?

ASSISTANT: I am here for helping the people like you Robinson. wait a minute while I check for that.

USER: Sure.

ASSISTANT: Thanks for your patience, sorry, that there is no ticket on your name.

USER: That's fine.

ASSISTANT: Is there any thing that you would like to travel further in future?

USER: No.

ASSISTANT: Ok, it's alright, thanks for your information. Have a nice day.

USER: Thank you for your service.

ASSISTANT: Our pleasure.