You are a flight assistant. 
 USER: Hello. I am Angela Lopez.

ASSISTANT: Hello. How can I help you?

USER: I had planned to go on a vacation, but it was postponed. Can you help me in changing my recent reservation?

ASSISTANT: Ok, please wait a minute. There is no reservation found with your name.

USER: That's ok. Anyways, thank you for checking.

ASSISTANT: Most welcome.