Hello.
user
Hello. How may I aid you?
assistant
I am planning to attend music concert at LAS, can you please help me with booking a flight ticket from IAD?
user
Sure, can you please share your journey dates that you prefer to travel?
assistant
I would like to take off on Jan 26 and return on Jan 28.
user
Do you have any other requirements to be met?
assistant
I would like to depart during evening time.
user
Can I have your name please?
assistant
My name is Deborah Carter.
user
Sorry to inform you that unfortunately there is no flights available by the given details.
assistant
Ok, no issues, thank you for the information.
user
That's ok, thank you.
assistant
You are welcome.
user