You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: One of my friend is unable to book his ticket from past two days, so I have reached your service to book the ticket, can you help in that booking?

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

ASSISTANT: Will you please provide your friends name to book the flight ticket?

USER: My friend name is Patricia Davis.

ASSISTANT: On which dates he wants to travel?

USER: Sure, they planned on 11/06 and may be return back on 11/08.

ASSISTANT: Will you please provide your friend airport codes?

USER: My friend want to travel form Las Vegas-LAS airport to Charlotte-CLT airport.

ASSISTANT: Ok, please hold on a moment to check the flights availability.

USER: Sure.

ASSISTANT: Based on your information, UA airlines providing a flight 1 connection with the fare of 200.

USER: Ok, go ahead with booking.

ASSISTANT: Congratulations, I have done your friend's reservation successfully with flight number 1005.

USER: Thank you so much for your service in helping my friend ticket.

ASSISTANT: Thank you for approaching us, have a great day to you and your friend,.

USER: Thank you.

ASSISTANT: Welcome.