You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I need to change my reservation as my friend made reservation wrongly. Can you help me with changing reservation?

ASSISTANT: Sure, let me know your good name to proceed further.

USER: Barbara Green is my name.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found according to your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for consulting us.