You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Timothy Thompson, I would like to change my recent reservation. Will you help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, let me check your previous reservation status.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you waiting, we couldn't find any reservation on your name in our records.

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

ASSISTANT: Thank you for choosing us.