You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Scott Lewis.

ASSISTANT: How can I support you for the day?

USER: Would you book a direct ticket to HOU from DFW?

ASSISTANT: Sure, Do you have price limit?

USER: Price limit is to be 200.

ASSISTANT: Kindly, share your trip dates.

USER: As I have an exams from 07/09 to 07/11. So these are my travelling dates.

ASSISTANT: Thank you for being patience.

USER: Ok.

ASSISTANT: Unfortunately, there is no direct flight available with your specified dates.

USER: No problem, I will go with another option. Thank you for your support to me.

ASSISTANT: Thank you for availing us.