You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to visit Morning Maverick horseback ride which is one of the famous tourist locations in Las Vegas, LAS. Can you help me to book a connecting flight?

ASSISTANT: Sure, please provide your travel dates?

USER: My travel dates are July 15 and 17.

ASSISTANT: May I know your source airport code?

USER: My source is from Washington, DCA.

ASSISTANT: Do you have any preferences?

USER: I want to return in the evening time.

ASSISTANT:  Do you have any other preferences?

USER: I want to travel in normal-cost airline.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Please mention your name to book the flight ticket.

USER: Please book the ticket on the name of Melissa Garcia.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for reaching us.