You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I have to change my reservation due to my planned event got postponed. So please help me with that.

ASSISTANT: Yes, can you tell me your name?

USER: Thank you. Please check the reservation with my name Cynthia Adams.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Oh! It may not be booked properly. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.