Hello.
user
Hello, how may I help you today?
assistant
I want to meet my twin sister to celebrate our birthday, could you book my ticket from LGA to DEN?
user
 Sure, may I know your travelling dates?
assistant
My itinerary dates are July 17 and 19.
user
On which name shall I reserve flight ticket?
assistant
Book the ticket on the name of Carolyn Clark.
user
Do you need any specifications?
assistant
I want to depart and return in the evening.
user
Please wait a moment.
assistant
I need a connecting flight.
user
Sorry, there are no flights found on given dates.
assistant
No problem, thank you.
user
Thank you for reaching us.
assistant