You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can serve you today?

USER: I have to attend a success meet in San Francisco, can you book the flight ticket for me?

ASSISTANT: Sure, I will help you with booking. Can I have your travel dates please?

USER: Ok, my travelling dates are from 11/13 till 11/15.

ASSISTANT: Ok, please let me know airport codes also.

USER: My location codes are from DCA to SFO.

ASSISTANT: Ok, please wait a moment let me find a flight for you.

USER: Ok.

ASSISTANT: Thank you for waiting. Happy to inform you that Delta airlines is providing a flight in your route with connection 1. Shall I go with booking?

USER: Please, proceed it.

ASSISTANT: Please let me know your good name for booking.

USER: My name is Daniel Lopez.

ASSISTANT: Ok Lopez, I have confirmed a ticket with flight number 1019.

USER: Thank you for booking the flight ticket.

ASSISTANT: Most welcome. Thank you for choosing us.

USER: Welcome.