You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in cancelling my recent reservation, as my grand fathers health is not good?

ASSISTANT: Sure, may I know your name?

USER: Thank you for the response. My name is Gary Campbell.

ASSISTANT: Ok, wait a minute.

USER: Ok, sure. I will wait for your response.

ASSISTANT: Sorry, there was no reservation found on your name.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.