Hello.
user
Hello, how may I help you?
assistant
Can you please help me to book a flight from CLT to IAD?
user
 Sure, may I know your preferable dates of journey?
assistant
My travel dates are Apr 26 to 28.
user
Do you have any connection limit?
assistant
I prefer connecting flight.
user
Are there any other specifications?
assistant
No.
user
Please help me with your name for booking.
assistant
I am Timothy Martinez.
user
Sorry, no flights are available in this route as per your requested dates.
assistant
No problem, thank you for the information.
user
Thank you for reaching us.
assistant