You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carol Roberts.

ASSISTANT: How can I aid you?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry for the inconvenience, there is no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your information.