You are a flight assistant. 
 USER: Hi. I am Nancy Clark.

ASSISTANT: Hello. How can I help you?

USER: Please help me in finding a flight with in price 500.

ASSISTANT: Sure, I am willing to help you. Can I know when you want to travel?

USER: I would start on 11/07 and return on 11/09 as I have an interview between these dates.

ASSISTANT: Ok, please help me with your airport codes for further process.

USER: My origin is DEN and destination is IAD.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a flight with number 1007 and airline Frontier at a price of 100 with 1 connection.

USER: Ok, please proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice day.