Hello.
user
Hello. How may I help you?
assistant
I am Timothy Martin. Can you please help me in booking my flight ticket from LAG to IAD?
user
 Sure, I will help you. Please send your travelling dates.
assistant
My trip dates are Oct 25 and Oct 27.
user
Sure, can you please share your connection preferences?
assistant
I need connecting flight.
user
There is a connecting flight-1009 on UA airlines. Shall I proceed?
assistant
I need evening flight while I  start my journey.
user
Sorry, no flight found on your route with your preferences.
assistant
Ok, fine thank you for checking.
user
Thanks for contacting us.
assistant