You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to change my existing reservation as my plan got extended. Can you help me?

ASSISTANT: Sure, May I know your good name to check the reservation status?

USER: Ok. I am Jennifer Lopez.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for your patience. There was no reservation found on your name.

USER: It's Ok, thanks for your response.

ASSISTANT: Thank you for contacting us.