You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Can you please assist me with cancellation of my previous reservation due to my back pain?

ASSISTANT: Sure, can I know your name?

USER: Sure, my name is Paul Wright.

ASSISTANT: Please hold a moment, let me check with the details.

USER: Sure, I will be waiting for your response.

ASSISTANT: Sorry, no previous reservations found on your given name.

USER: Oh! That's very sad to hear from you. Thank you for checking anyways.

ASSISTANT: Thank you for reaching our service.

USER: You are most welcome.