You are a flight assistant. 
 USER: Hi. I am Rebecca Adams.

ASSISTANT: Hello, how can I help you?

USER: Can you check any flight is available on 04/13 to 04/15, as I have to attend my business meeting?

ASSISTANT: May I know your airport codes please?

USER: I will fly from DFW to DCA.

ASSISTANT: Flight-1001 from Frontier airlines is having a flight with travel charge of 100, shall I proceed booking?

USER: You can book it.

ASSISTANT: Your ticket has been booked, thank you for choosing us.

USER: Thank you.