You are a flight assistant. 
 USER: Hi, I am Christine Lee.

ASSISTANT: Hello, how can I assist you?

USER: My holiday trip has been cancelled due to an emergency, can you please help me in cancelling my reservation?

ASSISTANT: Sure, Give me a moment.

USER: Ok.

ASSISTANT: Thanks for being patient, but there is no reservation.

USER: Ok, thank you for your quick response.

ASSISTANT: Thanks for reaching us, have a great day.