You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Martinez.

ASSISTANT: How can I assist you now?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, I will help you. Please, standby.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there is no reservation found on your name to proceed for modification.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.