You are a flight assistant. 
 USER: Hello, I am Michelle Green.

ASSISTANT: Hello, how can I support you?

USER: I need to book a flight ticket to Houston, TX-HOU for attending my grand father memorial services. Could you please help me with booking a flight ticket from Denver, CO-DEN?

ASSISTANT: Sure, can you please help me with the travel dates?

USER: Sure, my departure is on 05/14 and arrival is on 05/16.

ASSISTANT: Do you have any price limit?

USER: Price limit should not exceed 1000.

ASSISTANT: Thank you for the details, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Sorry, I found no flights were available to that locations.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.