You are a flight assistant. 
 USER: Hello, I am Ruth Gonzalez.

ASSISTANT: Hello, how can I assist you?

USER: As my schedule of attending an friends get together party got postponed. Can you please help me in changing my existing reservation?

ASSISTANT: Sure, please wait for few minutes.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation with your name.

USER: Ok, No issues.

ASSISTANT: Thank you, for reaching us.

USER: Thank you for your service.