Hello.
user
Hello.
assistant
I am Robert Brown.
user
How may I help you today?
assistant
I would like to book a flight from DTW to IAD, can you please help me to book a flight ticket?
user
Robert Brown, please mention your travelling dates?
assistant
Sure, my travelling dates are Dec 24 and Dec 26.
user
Please wait a moment.
assistant
Sure, take your own time.
user
Sorry, there are no flight tickets available on your journey dates.
assistant
That's ok, thank you for your information.
user
Thank you for reaching our service.
assistant