You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please be my helping hand for booking a flight ticket to Houston on the month of July?

ASSISTANT: Ok, please can you help me by providing the dates you have willing to travel on?

USER: Sure, I would like to travel on July 28 and return on 30 July.

ASSISTANT: Ok, please mention the airport codes of the location provided.

USER: Sure, airport codes are DEN - HOU.

ASSISTANT: Ok, please can I know your specifications?

USER: I need a connected flight to travel.

ASSISTANT: Please provide me the specification relation to flight class.

USER: There were no specifications.

ASSISTANT: Ok, thank you for providing the details.

USER: Ok.

ASSISTANT: Sorry as per the intents provided there are no flights available.

USER: That's Ok, thanks for your assistance.

ASSISTANT: May I know your name.

USER: sure, my name is Brian Baker.

ASSISTANT: Thank you for choosing our agency.