Hi.
user
Hello.
assistant
Myself Gregory Williams.
user
 Williams, how can I help you today?
assistant
I want to attend my friend's birthday party, can you please book the flight ticket from SFO to DEN?
user
Please share your travel dates.
assistant
I want to depart on 03/29 and return on 03/31.
user
Please wait for a while.
assistant
Sure.
user
Sorry Williams, no flight is available on your route.
assistant
No problem, thank you for checking.
user
Thank you for reaching us.
assistant