You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

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

ASSISTANT: Please wait for while.

USER: Sure.

ASSISTANT: Thank you for waiting. There is no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thanks for your quick response.