You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from DFW to CLT, can you help me?

ASSISTANT: May I know your journey dates to get a flight?

USER: My travel dates are Jan 05 and 07.

ASSISTANT: May I know your name in the meanwhile?

USER: I am Amanda Hernandez.

ASSISTANT: Is there any other specifications?

USER: I want to depart in the afternoon.

ASSISTANT: Sorry, there is no flight running on your route.

USER: No problem, thanks for checking.

ASSISTANT: Welcome  Amanda Hernandez.