You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I need to visit my relatives house in Washington, DC-IAD, so please help me to book a ticket.

ASSISTANT: Sure. Can you provide the full details of journey?

USER: I need to travel from Charlotte, NC-CLT. And the planned dates are 07/30 and 08/01.

ASSISTANT: Mention source and destination airport codes.

USER: I have already mentioned.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: I found a flight with price 200 and connection is 1.

USER: Ok, please proceed with the booking.

ASSISTANT: Your flight is booked with airline:Frontier and number is 1000. Have a safe flight.

USER: Ok, thank you for your support.

ASSISTANT: May I know your name?

USER: My name is Emily Lewis.

ASSISTANT: Thank you.

USER: You are welcome.