Hi.
user
Hello.
assistant
I am Gregory Green.
user
How may I assist you?
assistant
I want to meet my brother on his birthday, can you please book the flight ticket from DEN to LAX?
user
Sure, may I know your travelling dates please?
assistant
I will depart on 12/03 and return on 12/05.
user
Green, no flights has been found on your journey dates.
assistant
No problem, thank you for checking.
user
Thank you for reaching us.
assistant