You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to postpone my trip due to an emergency. Can you aid me in amending my existing reservation?

ASSISTANT: Ok, may I know your name?

USER: Ticket was reserved on the name Ruth Jones.

ASSISTANT: Sorry, there is no reservation found by your name.

USER: No issues. Thank you for checking.

ASSISTANT: Have a nice day.