You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jack Hill here.

ASSISTANT: How may I guide you today?

USER: Can you please cancel my recent reservation? As my planned trip has been cancelled.

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

USER: Sure, I'll wait.

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

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.