You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Christopher Garcia, can you help me to change the reservation I had done recently?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Please give me a moment to check your previous reservation status.

USER: Ok, please take your time.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: That is ok, thank you for the assisting me.

ASSISTANT: Thank you for reaching us.