You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to spend my time with my mother, I would like to change my existing reservation.

ASSISTANT: Sure, I will help you with changing the reservation. May I know your name please to proceed further?

USER: Myself Jessica Wilson.

ASSISTANT: There are no active reservations found with your details, Jessica.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for reaching us.