Hello.
user
Hello, how may I assist you today?
assistant
Can you help me to book a flight ticket from IAD to PHL?
user
Sure, may I know your travelling dates?
assistant
I want to take off on 04 Dec and return on 06 Dec.
user
 On which name shall I reserve flight ticket?
assistant
I am Samantha Garcia.
user
Do you need any specifications?
assistant
I would like to return in the evening with a connecting flight.
user
Please wait a moment.
assistant
Sure.
user
Sorry, there are no flights available on your travelling dates.
assistant
It's ok, not a problem, thank you.
user
Thank you for reaching our service.
assistant