You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Martinez.

ASSISTANT: How may I assist you today?

USER: I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you help me out with this ?

ASSISTANT: Sure, please stand by.

USER: Ok.

ASSISTANT: There is no existing reservation found on your name in our records.

USER: No issue. Thank you for the information.

ASSISTANT: Thank you for opting us for modification of your reservation.