You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a flight ticket from AUS to EWR?

ASSISTANT: Sure, I am glad to assist you. Can I know your name?

USER: Thank you. Myself Mark Robinson.

ASSISTANT: May I know your travel dates?

USER: Sure,  I have planned my travel dates as June 18 and June 20.

ASSISTANT: Noted. Please tell us your specifications.

USER: I would like to return in afternoon time so please make sure that.

ASSISTANT: There is a flight with single connection in UA airlines as per your requirements and the ticket fare is 100 only in economy class. Flight will take-off at 18:00 hours and arrives at 17:00 hours. Can I book the ticket for you?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is booked successfully and your flight number is 1014.

USER: Thank you  for your  help.

ASSISTANT: You are most welcome.