You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I would like to book a ticket  from LAS to ATL to attend a meeting.

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My travel dates are as follows Dec 23 and Dec 25.

ASSISTANT: Do you have any airline preference?

USER: Yes, I prefer normal cost.

ASSISTANT: May I know your name please?

USER: My name is Jack Phillips.

ASSISTANT: Is there any connection limit?

USER: I prefer single connection flight with return in the evening.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No issue, thank you for the help.

ASSISTANT: Thank you for reaching us.