You are a flight assistant. 
 USER: Hi. I am Barbara Parker.

ASSISTANT: Hello, How exactly I can assist you the best today?

USER: I am planning to travel from CLT to DCA, help me in booking a flight?

ASSISTANT: Sure, I am perky to help you. Can you please share your journey dates that you prefer to travel?

USER: My travelling dates are 10/03 to 10/05.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: My departure time is in morning.

ASSISTANT: Do you like to go with a economy class or business class?

USER: Any class is ok for me.

ASSISTANT: Thanks for your details, there are no flights available at this moment matching your particulars.

USER: That's ok, thank you.

ASSISTANT: Thanks for contacting with us, have a great day.