You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Betty Williams. I would like to change my recent booking due to wrong placing of dates while I am booking, can you help me in that one?

ASSISTANT: Sure, please give me a minute.

USER: Sure.

ASSISTANT: Betty, there is no reservation available on your name.

USER: Ok, no problem with that, thank you for your quick search.

ASSISTANT: You are welcome.