You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: As my shooting got relocated, can you help me to change my existing reservation?

ASSISTANT: Sure, I am here to help you. Please give me a minute to check your details in my records.

USER: Ok.

ASSISTANT: Meanwhile, may I know your name?

USER: Sure, my name is Gary Lopez.

ASSISTANT: Sorry Gary, there is no reservation found on your name in my database.

USER: Ok fine, thank you for the information.

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