You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I want to book a ticket from LAS to ATL to attend Sports meet.

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates are Aug 25 and Aug 27.

ASSISTANT: Are you comfortable in connecting flight?

USER: No, I want a direct flight.

ASSISTANT: Ok, do you have any more specifications?

USER: No.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Please reserve on the name of Emily Nelson.

ASSISTANT: Please be on hold to check the flights.

USER: Ok.

ASSISTANT: Unfortunately there are no flights running on your route with your required preferences.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for approaching us, have a great day.