Hi.
user
Hello. How may I assist you today?
assistant
I am John Anderson here, I want to reserve my ticket from IAD to LAX, can you please help me?
user
Sure, I will help you. Please help me with your name.
assistant
Thank you.
user
I am sorry. Please let me know with your planned travelling dates.
assistant
Sure, my planned dates of journey are from May, 17 to May, 19.
user
 Do you need a direct or connecting flight?
assistant
Yes, I need a direct flight.
user
Please help me with your preferred class to fly.
assistant
I am ok with any class preference.
user
Do you have any other preferences in your journey?
assistant
No.
user
John Anderson, I am really sorry to say that there are no flights available for your journey.
assistant
Ok, no problem.
user
Thank you for understanding.
assistant
Anyways, thank you for your service.
user
Thank you for reaching us. Have a great time.
assistant