You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Cynthia Martin.

ASSISTANT: How may I guide you today?

USER: Owing to emergency, I need to cancel my recent reservation. Please help me with that.

ASSISTANT: Sure, I will help you with that. Please wait for a minute.

USER: Sure.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.