Hi.
user
Hello, how may I serve you today?
assistant
I am Mark Clark. I am planning to meet my friends at SFO, so can you help me to book a flight from DEN?
user
Sure, please share me your trip dates.
assistant
My travelling dates are 07/04 and 07/06.
user
Do you want to travel in connecting flight or direct flight?
assistant
I am looking for a single connection flight.
user
Please share if you want to travel in any specific time?
assistant
Yes, I want to return at afternoon.
user
 Do you like to go with a economy class or business class?
assistant
I am fine with any class.
user
Please wait for a while.
assistant
Sure.
user
Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.
assistant
No issues, thank you for your time.
user
Thank you for opting us.
assistant