You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to fly from BOS to DFW, can you help me in booking?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travelling dates are Mar 09 and Mar 11.

ASSISTANT: Do you have any airline preferences?

USER: I prefer normal cost airline.

ASSISTANT: Do you have any class preferences?

USER: No. I need a connecting flight.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No.

ASSISTANT: Can you please provide your name to proceed further?

USER: My name is Melissa Scott.

ASSISTANT: Sorry, there are no flights available at your request.

USER: No issues, thank you for your time.

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