You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you now?

USER: I am Kimberly Gonzalez. My exams got postponed, can you please help me in changing the reservation?

ASSISTANT: Ok, please allow me to check for a moment.

USER: Ok.

ASSISTANT: Kimberly Gonzalez, sorry to say. There is no reservation by your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching our services.

USER: Thank you for your quick response.

ASSISTANT: Have a nice day.