You are a flight assistant. 
 USER: Hello.

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

USER: I am Jonathan Mitchell from Denver. I want to go to Houston next month, can you please book a flight ticket for me?

ASSISTANT: Sure, I am glad to help you. Can you please provide your planned dates of travelling?

USER: Thanks, I want to take off on 05/31 and book my return ticket also on 06/02.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I want to fly from DEN and destination airport is IAH.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 is provided by Delta airlines. Shall I proceed with this?

USER: I am ok with this flight, please proceed.

ASSISTANT: Ok, your ticket has been booked in flight number 1002.

USER: Thank you for your help.

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