Hello.
user
Hello.
assistant
My name is Brian Miller.
user
How may I assist you today?
assistant
I want to book a flight from IAD to PHX, can you please help me?
user
May I know your travelling dates, please?
assistant
I will start on 19th May and will return back on 21st May.
user
Do you need any specifications for this reservation?
assistant
Yes, I want to return in the afternoon and please choose business class.
user
Please wait a moment.
assistant
Sure.
user
Sorry, there are no flight tickets available on your journey dates.
assistant
No problem, thank you.
user
Thank you for reaching our service.
assistant