You are a flight assistant. 
 USER: Hello, I am Emma Scott.

ASSISTANT: Hello, how may I assist you?

USER: I am having my medical checkup appointment at Charlotte, can you help me to booking a ticket for me?

ASSISTANT: Sure, I am happy to help you. May I know your travel dates please?

USER: I am planning for this trip on 10/07 and 10/09.

ASSISTANT: Ok, can you please provide your airport codes?

USER: Sure, SEA to CLT.

ASSISTANT: Ok, hold on for a moment.

USER: Ensure that its fare is within 500.

ASSISTANT: I found a flight for you with UA airline and it costs you 100.

USER: Please proceed my booking.

ASSISTANT: Shall I proceed? Your ticket has been booked with 1007 flight number.

USER: Thank you for your help.

ASSISTANT: Welcome.

USER: You are welcome too.