Hello.
user
Hello. How may I help you out?
assistant
Can you please book a flight ticket from IAD to LAX?
user
Sure, I will help you in booking the ticket. May I know your travelling dates please?
assistant
Thank you. I have planned my travel dates as Aug 07 and Aug 09.
user
Can I know your name please?
assistant
Sure, myself Matthew Evans.
user
Do you need any specifications?
assistant
I am looking for single connecting flight  so please check with that.
user
Can I know your other requirements?
assistant
I do not have any other specifications.
user
Sorry, there are no flights found in our database.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you for reaching us.
assistant
Most welcome.
user