You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Linda Wilson. Can you help me to change my reservation?

ASSISTANT: Ok, let me check with your previous booking.

USER: Sure.

ASSISTANT: I am so sorry to inform you, there is no reservation found by your name.

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

ASSISTANT: Sorry for the inconvenience. Thank you for reaching us.