You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I need to modify my reservation as I am not able to make my trip. Can you please help me with that?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you for considering my request.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: Sure, my name is Jack Robinson.

ASSISTANT: Jack Robinson, there is no active reservation found under your name in our database.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for contacting us.