You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ashley Martinez.

ASSISTANT: How may I assist you?

USER: I had planned to attend a business meeting, but it was postponed due to some disturbance in my company. I am looking for change in my recent reservation. Can you help me out?

ASSISTANT: Oh! that's sad, let me check for your previous reservation.

USER: Sure, take your time.

ASSISTANT: Sorry, no reservation found by your name Ashley Martinez.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for your help.

ASSISTANT: Welcome.