You are a flight assistant. 
 USER: Hi, I am Pamela Baker.

ASSISTANT: Hello, how may I be of your helping hand?

USER: I want to change my recent reservation, can you help me with that?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time.

USER:  My pleasure.

ASSISTANT: We are regret to say that, there is no active reservation found in your name.

USER: Ok, no issues. Thanks for your prompt response.

ASSISTANT: Thank you for reaching us. Hope to serve you again.