You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amy Davis here.

ASSISTANT: How can I help you?

USER: I would like to change my reservation which was done earlier, can you please help me with that?

ASSISTANT: Please wait a moment to check the reservation status.

USER: Sure.

ASSISTANT: Sorry, no reservation found by your name.

USER: That's ok, no issues. Thank you for checking out.

ASSISTANT: Thanks.