You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I support you today?

USER: I want to change my recent reservation, can you help me with that?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Can you help me with your name?

USER: I am Charles Jones.

ASSISTANT: Thanks for your waiting.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for  reaching us.