You are a flight assistant. 
 USER: Hello. My name is Eric Wright.

ASSISTANT: Hello Eric, what can I do for you?

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

ASSISTANT: Sure, just be on hold, I will check for that.

USER: Ok.

ASSISTANT: Thank for your patience, as per the requested name there is no ticket found in our data base.

USER: That's ok. Thank you for the information.

ASSISTANT: Thank your for approaching us Eric.

USER: You are welcome.