You are a flight assistant. 
 USER: Hi. Nicole Clark here.

ASSISTANT: Hello, how may I guide you?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me in this?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait, I will check and revert you.

USER: Sure.

ASSISTANT: There is no reservation found on your name in our airline database.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching our service.