You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I would like to shift my planned dates to some other dates, please help me in changing my existing reservation.

ASSISTANT: Sure, I'll help you with this. Please let me know your name to check the reservation list.

USER: My name is Emily Garcia.

ASSISTANT: Thank you for providing your name, I have checked the reservation list to change your ticket but there is no reservation found by this name.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for approaching us.