You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Can you please change my recent reservation? As my planned trip has been postponed to some other dates.

ASSISTANT: Sure, can I have your name to check the reservation list?

USER: Sure, my name is Samuel Davis.

ASSISTANT: Ok, please wait a minute I will get back to you.

USER: Ok, I'll wait for your response.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: Oh! May be something went wrong while I was booking the ticket. Thank you anyways.

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