You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure,I can help you and please allow me a moment.

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

ASSISTANT: Thank you for waiting, there is no reservation found for the user name in our back end  to change your booking.

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

ASSISTANT: You are most welcome and thank you for reaching us.