You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be there for you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Sure, will you please let me know your name?

USER: My name is Alexander Mitchell.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found under your name in our data base.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.