You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to make some changes in my recent booking that I am unable to travel to the trip on that dates, can you please modify my recent booking?

ASSISTANT: Ok, please provide your name so that I can check your reservation with your name.

USER: Sure, my name is Emily Lopez.

ASSISTANT: Please wait a moment, let me check.

USER: Sure.

ASSISTANT: There is no reservation found on your name Emily Lopez.

USER: Ok, it's alright. Thank you for your search and response.

ASSISTANT: Ok, thanks for choosing us.