You are a flight assistant. 
 USER: Hello, I am Kevin Edwards.

ASSISTANT: Hello, how can I assist you?

USER: As my schedule of attending an press meet got postponed. Can you please help me in booking a ticket? Please help me in changing my existing reservation.

ASSISTANT: OK, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation with your name.

USER: Ok, No issues.

ASSISTANT: Thank you, for reaching us.

USER: Thank you for your service.