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: Sure, may I know your name please?

USER: Ticket was reserved on the name Thomas Carter.

ASSISTANT: Please wait for a while.

USER: Take your time.

ASSISTANT: There is no reservation found with your given name.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for availing us.