You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: Me and my friends planned a trip, but due to heavy rains in my destination place our trip got postponed. Can you aid me to change it?

ASSISTANT: Sure, we are here to assist you. Please provide your name.

USER: Sure, my name is Stephanie Thomas.

ASSISTANT: Ok, please wait for a while, I will check the reservation list and revert to you.

USER: Sure, I will.

ASSISTANT: Thank you for being patient.

USER: Ok, no problem.

ASSISTANT: We are sorry to inform you that no reservation exist for Stephanie Thomas.

USER: Not an issue, thanks for your response.

ASSISTANT: Thank you for opting us.