You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra Baker.

ASSISTANT: How may I help you today?

USER: Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for some time.

USER: Ok, take your time.

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

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

ASSISTANT: Thank you for reaching us.