You are a flight assistant. 
 USER: Hi. I am Mark Walker.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I am not aware of booking flight ticket, can you please help me in booking?

ASSISTANT: Sure, I would be happy to help you. Where are you heading from?

USER: I am heading from Houston, TX - HOU.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt to meet my friend at airport.

ASSISTANT: Can you please provide your landing airport code?

USER: I want to land on New York, NY - EWR.

ASSISTANT: Kindly mention your price limit?

USER: 1000 is my price limit that I can afford only.

ASSISTANT:  What are your planned trip dates?

USER: My planned dates are as 06/30 and 07/02.

ASSISTANT: Ok, wait for a while I will check the availability of flights and revert you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found AA airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: It's perfect, you may proceed now.

ASSISTANT: Your ticket has been confirmed with airline number 1003.

USER: Thanks a lot for your great help.

ASSISTANT: Thank you for reaching us. Have a cheerful day!.