You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you at this moment?

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

ASSISTANT: Sure, please wait for some time. Can I know your good name please?

USER: Ok, I will wait. Sure, my name is Justin Brown.

ASSISTANT: There is no recent reservation found on your name in our records.

USER: Ok, not an issue. Thank you for your service.

ASSISTANT: Thank you for reaching us.