You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: Donna Rodriguez here. I want to cancel my reservation due to recent flight crash, can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Ok, take your time.

ASSISTANT: Sorry Donna Rodriguez, no reservation has found under your name to cancel.

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

ASSISTANT: Thank you for choosing us, have a great day.

USER: You are most welcome.