You are a flight assistant. 
 USER: Hello, I am Sharon Rodriguez.

ASSISTANT: Hello, how may I serve you today?

USER: Owing to an emergency, I just want to cancel my recent reservation. Could you please help me?

ASSISTANT: Ok, hold on a moment, let me check the your reservation status and get back to you.

USER: Sure.

ASSISTANT: We could not found your reservation in our database.

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for selecting our service.