Hello.
user
Hello, how can I help you today?
assistant
 My name is Charles Lee. I would like to book a ticket from IAH to BOS.
user
 Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?
assistant
My itinerary travel dates are Apr 30 and May 02.
user
Do you have any class preference?
assistant
No I don't have any class preferences.
user
Do you have any other specifications on your trip?
assistant
I would like to board on a single connection flight where the depart time should be in the evening.
user
Ok, please wait a moment.
assistant
Sure, take your time.
user
Sorry to say, no flights found with your requirement.
assistant
No problem , Thank you for the information.
user
Thanks for reaching us.
assistant