You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Lopez.

ASSISTANT: How can I assist you?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, I am happy to help you. Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any active reservation on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us.