You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Sharon Martinez. Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I am here to help you in that.

USER: Thank you.

ASSISTANT: Please give me a moment to check your reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for choosing us.