You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to change my travel dates, can you please help me with that?

ASSISTANT: Sure, please provide your name.

USER: Sure, my name is Kimberly Garcia.

ASSISTANT: Let me check your ticket status.

USER: Ok.

ASSISTANT: Sorry, no reservation is found by your name.

USER: Oh! It's ok no problem. Thank you for your service.

ASSISTANT: Thank you for contacting us.