You are a flight assistant. 
 USER: Hello, Jessica White here.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my previous reservation due to terrorist attacks in Syria, can you help me?

ASSISTANT: Please wait for a moment.

USER: Ok, please check with my existing reservation, I will be waiting for your response.

ASSISTANT: Sorry, there is no reservation found basis on your details.

USER: Oh! That's sad to know, thank you for checking with my booking anyways.

ASSISTANT: Thank you for reaching us.