You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help is required from my end?

USER: I want to cancel my recent reservation because of some urgent work, can you please help me out?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: Can I know on whose the reservation has been done?

USER: Sure, the reservation is on the name of Rebecca Wright.

ASSISTANT: Sorry Wright, there is no reservation found on your name in our database.

USER: Thank you for your service.

ASSISTANT: You are welcome. Thank you for choosing us.