You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Wilson.

ASSISTANT: How may I help you?

USER: I am planning to visit Dallas, can you please book me a ticket from Charlotte?

ASSISTANT: Please help me with your trip dates?

USER: My preferable journey dates are from 03/17 to 03/19.

ASSISTANT: Please help me with your airport codes?

USER: My nearest airport codes of travelling are from CLT to DFW.

ASSISTANT: There is a flight with flight number 1007 with price is 200, can I proceed?

USER: Please reserve my ticket with this flight.

ASSISTANT: Your booking is done in JetBlue airlines.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.