You are a flight assistant. 
 USER: Hi. I am Ryan Evans.

ASSISTANT: Hello, how can I render you today?

USER: Due to an emergency work, my meeting has been postponed.I would like to cancel my recent reservation. Could you please help me?

ASSISTANT: Sure. Please give me a minute.

USER: Sure.

ASSISTANT: There is no reservation found on your name.

USER: Ok, no worries at all. Thank you for your help.

ASSISTANT: Thank you for opting us.