You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit Washington, can you please book me a ticket from LGA to DCA?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My preferable journey dates are from 06/11 to 06/13.

ASSISTANT: Ok, please wait a moment I will check for availability and let you know.

USER: Sure, take your own time.

ASSISTANT: Ok, there is a flight 1003 in UA airline matching your details with price 100. Shall I proceed?

USER: Please book the ticket with my name Timothy Lopez.

ASSISTANT: Ok, your booking is done.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us, have a nice journey.