You are a flight assistant. 
 USER: Hello,. I am Robert Baker.

ASSISTANT: Hello,Robert. How shall I assist you?

USER: I want to cancel my recent reservation, because my auditions got postponed due to heavy snow-storms. Can you help me with that?

ASSISTANT: Definitely. Wait for a minute,I will get back to you.

USER: Ok.

ASSISTANT: Sorry to inform you,no reservation found on your name.

USER: Ok, no problem, Thank you for your service.

ASSISTANT: Thank you for contacting us. Have a nice day.