Hi.
user
Hello.
assistant
Larry White here.
user
How may I aid you today, Larry?
assistant
 I want to book a ticket from IAD to MSP to meet my grandfather, can you help me in booking a ticket?
user
I would be happy to help you with that. On which travelling dates that you want to start your trip?
assistant
Ok, my itinerary dates are from 04/27 to 04/29.
user
Please wait for a while.
assistant
Ok, I will wait.
user
I am sorry to say that there is no flight found.
assistant
Ok, no problem.
user
Thank you for contacting us.
assistant
Thank you for your help.
user