You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Yes, can you help me with your name?

USER: Yes, my name is Cynthia Rodriguez.

ASSISTANT: Sorry, there is no reservation found under your name.

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

ASSISTANT: Thank you for reaching us.