You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Christine Gonzalez.

ASSISTANT: How may I assist you?

USER: For some issues I want to cancel my reservation. Can you please help me?

ASSISTANT: Sure, wait a while. Christine, there is no reservation found for you to cancel.

USER: It's ok. Thank you for the information.

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