You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be your helping hand today?

USER: My plan to visit cousin's home got postponed, will you help me to change my recent reservation?

ASSISTANT: Sure, I will aid you.

USER: Thanks.

ASSISTANT: To check the reservation list, we need your name.

USER: My name is Linda White.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found based on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.