You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself John Martinez.

ASSISTANT: How can I assist you at this moment?

USER: I am planning to visit Houston, will you help me in booking the flight ticket from IAD to HOU?

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

USER: My travelling dates are Nov 21 and Nov 23.

ASSISTANT: Ok, please wait a moment.

USER: Ok, I will wait for you response.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the ticket fare is 100. Are you ok with this flight?

USER: Sure, you can proceed with the booking.

ASSISTANT: Ok John Martinez, your ticket booking has done and the flight number is 1025.

USER: Thank you for helping me.

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