You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I'm Rachel Rodriguez, can you please help me in changing my recent booking?

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Ok, I will wait.

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

USER: That's ok, thank you for your information.

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