You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi.

USER: I am Alexander Roberts.

ASSISTANT: How can I guide you?

USER: I have a plan to meet my friend in New York, so could you please help me to book a flight ticket from LAS to EWR.

ASSISTANT: Sure, may I know your date of journey?

USER: My departure date is 04/25 and my return date is on 04/27. Please make sure that my connections limit should be 1?

ASSISTANT: UA airlines is matching you, can I book the flight for you with 1015 flight number?

USER: Ok, book a flight.

ASSISTANT: Your ticket is booked.

USER: Ok, thank you for booking.

ASSISTANT: Thank you, have a safe journey.