You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Daniel Smith.

ASSISTANT: How can I amend you today?

USER: Can you cancel my recent reservation due to my health issue?

ASSISTANT: Sure, we are to aid you.

USER: Thank you.

ASSISTANT: Please, wait for a while I will check the reservation and revert to you.

USER: Sure.

ASSISTANT: Thanks for your precious time. Sorry, we could not find any reservation with your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for availing us.