You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I am Joshua Lewis. Owing to an emergency, I would like to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, let me check the reservation list and get back to you.

USER: Sure.

ASSISTANT: There is no reservation found by the name you provided.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.