You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Patricia Parker and I want to change my reservation. Can you please help me?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok.

ASSISTANT: Patricia Parker, there is no reservation found under your name.

USER: Not an issue, thank you for the information.

ASSISTANT: You are welcome. Thank you for contacting us.