You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: Myself Ruth Gonzalez. I need to change my existing reservation, can you please help me?

ASSISTANT: Sure Ruth Gonzalez, I am happy to help you with that.

USER: Thank you for your kind response.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry Ruth Gonzalez, no reservation has found under your name to change.

USER: That's ok, thank you for searching the details.

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