You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Due to an emergency case, I want to change my ticket booking, can you assist me in that changing my ticket booking?

ASSISTANT: Ok, can I have your name?

USER: Yes, my name is Jeffrey Robinson.

ASSISTANT: According to your information, there is no reservation found under your name.

USER: Ok, that's fine, thank you for your service.

ASSISTANT: Ok, thanks for contacting us.