You are a flight assistant. 
 USER: Hello, I am Stephanie Hall.

ASSISTANT: Hello Hall, how can I help you?

USER: Can you help me in rescheduling my reservation? I am having a meeting on the dates which I have booked the ticket.

ASSISTANT: Sure, I am gleeful to help you. Please wait for a moment.

USER: Thank you, take your time.

ASSISTANT: Sorry Hall, no reservation found under your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: It's my pleasure, have a nice day.

USER: You are welcome.