You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Green.

ASSISTANT: How can I assist you at this moment?

USER: I would like to book a ticket to Los Angeles for delegates meet, can you please help me out?

ASSISTANT: Sure Donald Green, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Can I have your travel dates please?

USER: I am travelling on these dates 07/16 and 07/18.

ASSISTANT: Ok, please let me know the airport codes of your planned journey locations.

USER: I am flying from IAH To LAX.

ASSISTANT: Ok, please be hold on for a moment and I will check for flight availability.

USER: Sure, take your time.

ASSISTANT: Yes, I have found a flight in UA airlines with connection 1 and price 100, is it ok for you?

USER: Ok, you can proceed with this flight.

ASSISTANT: Ok Donald Green, I have confirmed a ticket with flight number 1001.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us, have a great journey.