You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Melissa Walker, want to travel from DFW to SFO.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 02/09 to 02/11. Please check the flight with 0 connection.

ASSISTANT: There is a flight for you with 1 connection in Frontier airline and fare is 100. Shall I proceed? Sorry for 0 connection, there is no flight available.

USER: It's ok, thank you.

ASSISTANT: Most welcome.