Hi. I am Betty Miller.
user
Hello, how may I guide you at this moment?
assistant
Please book a connecting flight from Washington.
user
Sure, can you please mention your departure and arrival dates of your journey?
assistant
    My travelling dates are 11/08 and 11/10.
user
May I know from where you are flying from and landing at?
assistant
I want to start from IAD to LAX.
user
May I know if you want any specific time for your departure and return?
assistant
I would like to depart in the evening.
user
Do you like to go with a economy class or business class?
assistant
      I am ok with any class.
user
Sorry to inform you that there are no flights available on your preferable dates.
assistant
 That's ok, thank you for the response.
user
Thanks for choosing us.
assistant