Hi.
user
Hello. How can I help you today?
assistant
I would like to meet my elder brother in Denver, can you please help me to book my flight ticket from LAX to DEN?
user
Sure, I can help you with that.
assistant
Thank you.
user
Can you please mention your travel dates for booking flight ticket?
assistant
I would like to depart on 07/25 and also book the return ticket on 07/27.
user
May I know your name for  further process?
assistant
My name is Stephen Lopez.
user
Ok, please hold on a moment, I will check flight availability.
assistant
Sure.
user
Sorry for the inconvenience no flights available in this route as per your requested dates.
assistant
No problem, anyway thank you for checking.
user
You are welcome.
assistant