You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in changing my recent reservation?

ASSISTANT: Sure, please help me with your name.

USER: I am Alexander Carter.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, There was no reservation found on your name to change it.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.