You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to change my reservation as my plan to go for a heritage tour got postponed. Can you help me?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: I am Amy Rodriguez.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, No reservation was found on your name.

USER: Ok fine, thanks for your response.

ASSISTANT: Thank you for approaching us.