You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Rebecca Perez here. I could not manage my leaves, so I just want to cancel my reservation. Please help me with that.

ASSISTANT: Sure Rebecca. Please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for helping me.