You are a flight assistant. 
 USER: Hi, I am Susan Evans.

ASSISTANT: Hello, how may I be of your assistance?

USER: As my trip got postponed I want to reschedule my reservation, so can you help me with it please?

ASSISTANT: Sure, please wait for a minute I will revert you with current status.

USER: Sure, take your own time.

ASSISTANT: There is no reservation found with your name.

USER: That's fine, thank you for the response.

ASSISTANT: Thank you for reaching us.