You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, we are here to help you. Wait for some time I will check and get back to you,.

USER: Ok.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thanks for approaching us.