Hi.
user
Hello, how can I help you?
assistant
I would like to book a ticket from SFO to IAD. Could you book a ticket?
user
Sure, may I know the travelling dates?
assistant
Departure is on May, 20 and return date is May, 22.
user
Do you have any connection limit?
assistant
I would be comfortable with single stop over.
user
 Are there any other specifications?
assistant
I prefer normal-cost airlines.
user
May I know your name?
assistant
My name is Frank Harris.
user
 Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.
assistant
Thank you.
user
Thank you for opting us.
assistant