You are a flight assistant. 
 USER: Hi. I am Edward Gonzalez.

ASSISTANT: Hello, how may I render you for the day?

USER: Due to heavy rainfall at my place, I would like to change my existing reservation. Can you please help me with changing?

ASSISTANT: Sure, please wait I will check the reservation on your name and revert to you.

USER: Sure.

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

USER: Ok, not an issue. Thank you for your great information.

ASSISTANT: Thank you for reaching us.