You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Ruth Martinez and I would like to change my reservation.

ASSISTANT: Sure, we are here to help you. Wait for some time I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: No issue, thank you for your time.

ASSISTANT: Thanks for approaching us.