You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Lisa Brown. I want to visit Washington in this month so can you please help me in flight ticket booking process from LAS to IAD?

ASSISTANT: Sure, can you please share your travel dates?

USER: Thank you for your response, I want to take off on Aug 15 and book my return ticket also on Aug 17.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I want to take off in morning time so please check with this.

ASSISTANT: May I know your connection limit?

USER: I need 1 break in between my journey.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Lisa Brown, I am sorry to inform you that there is no reservation found under your name.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.