Hello.
user
Hello. How may I guide you at this moment?
assistant
I am Mark Davis. Can you please book a flight ticket from LAX to SFO?
user
Sure, I am really happy to help you to book the ticket. Can you please let me know your travel dates?
assistant
Sure, I need to travel on dates of Jan 17 and Jan 19.
user
Ok, please give a minute. In the meanwhile, tell me if you have any requirements?
assistant
I would like to travel in economy class.
user
Sorry to inform you that, there is no flight found in this route on the dates you have given.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
You are welcome. Thank you for opting us.
assistant