You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mark Clark here.

ASSISTANT: Can you please tell me how may I help you?

USER: I have an appointment with my family doctor in EWR. Can you please make a reservation from LAS?

ASSISTANT: Sure, I can help you with that. May I know your preferred trip dates?

USER: Sure, my travelling dates are from Oct 1 to Oct 3.

ASSISTANT: Ok, which type of class do you prefer to travel?

USER: I am ok with any class.

ASSISTANT: Ok, do you need a direct flight or a connecting flight?

USER: I need a connecting flight.

ASSISTANT: Ok, do you have any other preferences?

USER: Yes, My depart and arrival time must be in the afternoon.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Ok, there is a flight-1027 which is matching to your requirements. The departing time is 17:00 PM, the returning time is 13:00 PM and the ticket cost is 300 in an economy class flight. Shall I reserve the ticket?

USER: Ok, please proceed.

ASSISTANT: Ok, I have reserved your ticket with the flight airlines JetBule. Have a safe flight.

USER: Thank you.

ASSISTANT: Most welcome. Thank you for consulting us.