You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I address you?

USER: Could you please help me in changing my existing reservation?

ASSISTANT: Sure, will you please let me know on what name it was made formerly?

USER: It was made under the name Ashley Martinez.

ASSISTANT: Ok, let me check the status and revert you.

USER: Sure.

ASSISTANT: Thanks for waiting, I have gone through the list but could not find any reservation active under your name in our data base.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you.