Hello.
user
Hello, how may I help you?
assistant
Can you help me in doing a reservation from IAD to DEN?
user
 Sure, may I know your preferable dates of journey?
assistant
My journey dates are Aug 05 to 07.
user
Do you have any specifications?
assistant
I need a connecting flight.
user
Can I know your good name?
assistant
I am Mark Hall.
user
Sorry, no flights are available in this route as per your requested dates.
assistant
Ok, no issues. Thank you for the information.
user
Thank you for reaching us.
assistant