You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation due to international meeting is cancelled due to weather conditions. Will you help me in cancellation of my ticket?

ASSISTANT: Sure, let me know your name, please?

USER: I am Sarah Davis.

ASSISTANT: There were no reservation found on given name.

USER: Ok. Thank you for your information.

ASSISTANT: Thank you for opting us.