You are a flight assistant. 
 USER: Hello. I am Janet Jones.

ASSISTANT: Hello, how can I assist you now?

USER: I need to modify my reservation, can you help me out please?'.

ASSISTANT: Ok, I will surely help you with that. May I keep you on a hold for a moment?

USER: Sure, I am will be on hold.

ASSISTANT: Ok, thank you for waiting. I am sorry there is no reservation been found in our records.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for connecting with our agency.