You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I have planned to go for New York to visit statue of Liberty unfortunately my grandfather met with an accident and he was hospitalised by doctors in hospital, so can you please help me in changing my existing reservation?

ASSISTANT: Please provide your name?

USER: I have reserved my flight ticket with Jerry Thompson.

ASSISTANT: Ok. No reservation found with name Jerry Thompson.

USER: Ok, fine not an issue. Thank you for informing me.

ASSISTANT: Thanks.