You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. I hope you are good today, how can I help you?

USER: My name is Barbara Walker, I want to meet my boss in Philadelphia. Can you book the ticket from DFW to PHL?

ASSISTANT: Sure, I will help you. Can I know your desired travel dates please?

USER: I want to depart on 08/01 and return on 08/03.

ASSISTANT: Please wait a while.

USER: Sure, I want a direct flight.

ASSISTANT: I will check and inform you.

USER: Ok.

ASSISTANT: Sorryy to say, there is no flight with connection limit 0 on your desired travel dates.

USER: No problem, I will find an other way to travel. Thank you for checking.

ASSISTANT: Thank you for utilizing our service.