You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Need your assistance for booking to DEN in business class on the name of James Adams.

ASSISTANT: Sure, we are mirthful to help you. May I know your journey dates please?

USER: Sure, my travelling dates are Feb 8 and 10.

ASSISTANT: From which airport, you want to start?

USER: I am heading from HOU.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: My depart time is morning.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok, thanks for your response.

ASSISTANT: Thank you for availing us.