You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Emily Lee here.

ASSISTANT: How can I help you Lee?

USER: Can you help me in searching a flight ticket?

ASSISTANT: Sure Emily, can I know the travel dates please?

USER: My friends planning to visit Charlotte in this week. Dates are 12/28 and 12/30.

ASSISTANT: Can you provide the travelling codes?

USER: My origin is MCO and destination is CLT. 500 is my price limit.

ASSISTANT: Ok, wait a moment.

USER: Ok.

ASSISTANT: I found a flight a for you with number 1020 and airline is Delta. The price is 100. Shall I book it?

USER: Please proceed with that flight.

ASSISTANT: I have booked your ticket.

USER: Thank you for helping me in searching a flight.

ASSISTANT: Thank you for approaching us, have a safe journey.