Hi.
Hello, how can I serve you today?
    I want to book a flight ticket from IAH To LAX, can you help me with booking please?
Sure, it is my pleasure to help you with the booking.
Thank you.
May I know when are you willing to travel?
I am willing to travel on dates 05/10 and 05/12.
Do you have any restriction with your depart and return time?
I want to return at afternoon.
Which airline do you prefer to travel?
I need to travel in normal cost airline.
Do you have any other preference?
I need a connecting flight.
May I know your name please?
I am Richard Lee.
Sorry, we can not provide you any flight as not a single one is meeting all your restriction.
     That's ok, thank you for the response.
Thank you for reaching us.