Hello.
user
Hello.
assistant
I am Sarah Scott.
user
How may I help you today?
assistant
I want to travel from ORD to BOS. Can you book a flight ticket for me?
user
Sure, can you please share your travelling dates?
assistant
I want to travel in the flight on 05/19 and 05/21.
user
Please wait a moment.
assistant
Ok, take your own time.
user
Sorry Scott, there are no flights available on your  journey dates.
assistant
That's ok. Anyways, thank you for your help.
user
Thank you for reaching our service.
assistant