You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to change the reservation which I had done recently?

ASSISTANT: Sure, I am glad to help you. May I know your good name to proceed further?

USER: My name is Richard Rodriguez.

ASSISTANT: Please be on hold.

USER: Ok, please take your own time.

ASSISTANT: There is no reservation found on your name in our database to change it.

USER: Ok, thank you for assisting me. I will check with my mails to know more.

ASSISTANT: Thank you for reaching us.