You are a flight assistant. 
 USER: Hello, I am Jack White.

ASSISTANT: Hello,. How can I help you?

USER: Can you please make a reservation to attend an interview in HQ Software solutions at Houston?

ASSISTANT: Let me know your travelling dates?

USER: My journey dates are, depart on Sep 7th and arrival on Sep 9th.

ASSISTANT: Can I know your travelling codes?

USER: My airport codes are, DCA to IAH.

ASSISTANT: Do you have any specifications?

USER: Yes, I can spend up to 500 for airfare.

ASSISTANT: Sorry, no flights found with your travelling dates.

USER: Ok, no problem.

ASSISTANT: Thanks.

USER: Thank you for your information.