You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to change my recent reservation as I want to stay some more time in my home. Can you assist me in this?

ASSISTANT: Sure, may I know your name please?

USER: My name is Jonathan Miller.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thanks for your time, sorry no reservation found with your name.

USER: Ok, may be I have done with some other airline.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for the information.