You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am Katherine Martinez. I want to book a flight ticket to attend my friend wedding in Houston, could you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I want to fly on 03/03 and return on 03/05.

ASSISTANT: Can you share your airport codes?

USER: My source is Dallas, TX - DFW and destination code is TX - HOU.

ASSISTANT: Do you have any requirements?

USER: I need a halt in between my journey. My price limit is 200.

ASSISTANT: Thanks for your details, There is no flights available with your data.

USER: Not an issue.

ASSISTANT: Thank you.

USER: Thank you.