You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Deborah Nelson, I would like to change my recent reservation, can you help me with this?

ASSISTANT: Ok, please wait a moment, let me check your reservation status.

USER: Sure.

ASSISTANT: Thanks for your patience, there is no reservation with your name to change it.

USER: That's fine, thanks for your help and information.

ASSISTANT: Welcome Deborah Nelson.