You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Sarah Rodriguez.

ASSISTANT: Nice to meet you Sarah Rodriguez.

USER: I would like to change my recent booking due an important meeting held in my office, can you help in changing my recent booking?

ASSISTANT: Sure, I can help you with that. Ok, Please wait a moment.

USER: Sure.

ASSISTANT: There is no previous reservation found on your name.

USER: Ok, that's fine, thank your for your immediate response.

ASSISTANT: Thank you for contacting us, have a good day.

USER: Welcome.