You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency, I want to change my existing reservation. Can you help me in that?

ASSISTANT: I am happy to help you. Sure, can you please let me know your name to check with the reservation status?

USER: Myself Deborah Wright.

ASSISTANT: Thank you for sharing your name. Please allow me 2-3 minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, Deborah Wright. Sorry, there is no active reservation found under your name to change.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.