You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: I am Melissa Walker. Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, let me check the reservation status and revert to you.

USER: Ok, take your time.

ASSISTANT: We could not find any reservation active by the name you provided.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.