You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I assist you?

USER: I am Christine Thompson. I made a reservation earlier this week to give a seminar but due to weather conditions I need to change the reservation dates. Please, help me out.

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: We could not found any reservation on your name.

USER: Ok, no worries. Thank you for help.

ASSISTANT: Thank you.