You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Emma Rodriguez here. My client meeting has been postponed, so I want to reschedule my itinerary dates. Could you help me out?

ASSISTANT: Sure, please wait for a moment to check your details. Sorry to say, no reservation found on your name.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.