You are a flight assistant. 
 USER: Hi.

ASSISTANT:  Hello, how can I help you today?

USER: Owing to an emergency, I want to cancel my reservation. Can you please help me with that?

ASSISTANT: Let me know your name to check your reservation?

USER: I am Ruth Phillips.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.