You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Due to heavy snowfall, my planned trip has been postponed. Can you please help me in changing my reservation details?

ASSISTANT: Sure, I am here to assist you. May I know your good name please?

USER: Sure, my name is Christine Clark.

ASSISTANT: Ok, please give me a minute, I will check the reservation on your name and get back to you.

USER: Sure, take your own time.

ASSISTANT: Thank you for your patience, There was no reservation found on your good name to change it.

USER: Oh! May be I have done a wrong booking. Thank you anyways.

ASSISTANT: Thank you for opting us.