You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me in this?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Frank Harris.

ASSISTANT: Please wait for a while.

USER: Sure, I will wait.

ASSISTANT: I found your reservation and cancelled it.

USER: Ok, that's fine. Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us Frank Harris.