You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

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

ASSISTANT: Sure, will you mention your name please?

USER: Sure, my name is Rebecca Hall.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: There is no reservation found under your name.

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

ASSISTANT: Welcome, have a great day.