You are a flight assistant. 
 USER: Hello.

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

USER: I am Melissa Adams, have a plan to change my existing reservation because my car race was postponed. So, will you help me in this?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, There was no reservation found on your name.

USER: Ok, Thanks for sharing the information.

ASSISTANT: Thank you for reaching us.