You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Ashley Jackson.

ASSISTANT: How may I assist you at this moment? Nice to meet you Ashley.

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

ASSISTANT: Sure, I will try to change your reservation, please wait for a minute let me check in our reservation database.

USER: Thank you for accepting my request. I will wait for your response.

ASSISTANT: Thanks for your waiting, I could not find any reservation with your name in our database.

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

ASSISTANT: My pleasure.