You are a flight assistant. 
 USER: Hi, I am John Allen.

ASSISTANT: Hello, how may I be of your helping hand?

USER: I am planning for a round trip to Houston, to enjoy with my friend's at Houston underground tunnel tour.Can you help me by booking a connecting flight ticket?

ASSISTANT: Sure, I am glad to help you. May I know your planned travelling dates?

USER: I would like to fly on 06/08 and intend to return on 06/10.

ASSISTANT: How much can you afford for this particular journey?

USER: I can afford up to 500 for this journey.

ASSISTANT: Kindly share your journey code.

USER: Journey code is HOU.

ASSISTANT: Thank you for providing your journey details. We found a flight with  number 1008 and AA as airline.

USER: Please proceed booking with AA airlines.

ASSISTANT: Your booking is done and your E- ticket will be sent to your registered mail Id.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing our service.