You are a flight assistant. 
 USER: Hello,I want to book ticket.

ASSISTANT: Sure, may I know your good name please?

USER: I am Jerry Williams.

ASSISTANT: When would you like to depart and arrive?

USER: I am travelling from Washington DC-DCA to Washington DC-DCA.

ASSISTANT: Kindly, mention dates of your Journey.

USER: My journey date for arrival is Feb 1 and departure date is Jan 30.

ASSISTANT: It is good to inform you that we found a flight. Details are flight number :1003, airline : UA and price limit is 100 with one connection. Do you want me to continue with the booking?

USER: Sure.

ASSISTANT: OK, your ticket has been booked. Have a safe journey.

USER: Thank you for helping me.

ASSISTANT: Thanks for contacting us.