You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to change my reservation to another destination, so can you help me to change my reservation?

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Janet Martin.

ASSISTANT: Sorry, no reservation found on your name to change your details.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.