You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I need you to help me in re-booking my flight ticket.

ASSISTANT: Sure, I am here to help you with this.

USER: I am happy to know that.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: My name is Anna Scott.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait.

ASSISTANT: Anna Scott, there is no active reservation found under your name in our database.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.