You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emily Clark.

ASSISTANT: How can I assist you?

USER: I wank to cancel my recent reservation, due to health issues. Can you please help me?

ASSISTANT: Ok, please wait.

USER: Sure, I will wait for your response.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.