You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, will you please let me know your name to check the reservation list and revert you?

USER: Thank you for accepting my request. Myself Rebecca Hall.

ASSISTANT: Ok, please wait.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting Rebecca Hall, we could not find any reservation by the name you provided.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you reaching us.