You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Emily Lopez, I want to change my reservation as my plan to visit my friend is postponed. Can you change my reservation?

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

USER: Sure, I will wait.

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

USER: Ok, thank you for the information.

ASSISTANT: Thanks for approaching us.