You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jacob Lopez.

ASSISTANT: How can I assist you today?

USER: I need cancel my reservation, can you help me out please?

ASSISTANT: Sure, please wait for a while. Thank you for waiting, here there is no reservation found under your name in our records.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.