You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Linda Harris. Can you help me to change my reservation to next week?

ASSISTANT: Can you please wait for a while?

USER: Sure.

ASSISTANT: Sorry, no reservation was found by your name. Thank you for reaching our services.

USER: Ok, no issues.

ASSISTANT: Have a nice day.

USER: Thank you.