You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Ashley Rodriguez here. I will be changing my reservation today due to my health issues, can you help me out?

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Ok, take your time to check with my previous booking.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Oh! That's ok, thank you for checking with availability.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: You are welcome.