Hi, I am David Mitchell.
user
Hello. How can I help you?
assistant
As I am a doctor I need to fly with the direct flight to Las Vegas to treat an emergency case, can you help me with the booking?
user
Sure. On what dates you want me to book the ticket?
assistant
I intend to start on Nov 3rd and my return date will be on Nov 5th.
user
Kindly share your journey point details.
assistant
My boarding and landing airport codes are OAK and LAS.
user
 In which class do you want to travel?
assistant
I am comfortable with any class.
user
Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.
assistant
Sure.
user
Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.
assistant
No issues, I'll choose any alternative to reach my destination. Thank you for your information.
user
Thank you for choosing us.
assistant