You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to change my recent reservation, can you help me in doing that?

ASSISTANT:  Please share your name to proceed further.

USER: I am Lisa Lee.

ASSISTANT: There is no active reservation found under your name to amend it.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.