You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Owing to emergency, I need to cancel my recent reservation. Please help me with that.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please to check your recent reservation?

USER: My name is Emily Lewis.

ASSISTANT: Emily Lewis, no reservation has been found on your name in our records.

USER: Nothing to worry, thanks for your information.

ASSISTANT: Thank you for reaching us.