You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Thomas Johnson, want to travel from EWR to DCA. Please help me in booking my ticket.

ASSISTANT: Sure Thomas, I am ready to help you with that. Can I have your travel dates please?

USER: Thank you and my travelling dates are from 10/10 to 10/12.

ASSISTANT: Ok Thomas, please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: I have found a flight in Delta airlines which is having connection 1 and the ticket fare is 100. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Ok Thomas, your ticket booking has done and the flight number is 1000.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a great journey.