You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Please help me in booking flight ticket from HOU to OAK.

ASSISTANT: May I know your itinerary dates?

USER: My trip dates are Aug 27 to Aug 29.

ASSISTANT: Which class do you prefer?

USER: I am okay with any class.

ASSISTANT: Do you prefer a direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Nicholas Turner.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Southwest airlines with flight 1013 is providing a connecting flight and ticket costs you 300 in economy class.

USER: I want to travel in normal cost airline. Please check in that airline if possible?

ASSISTANT: Let me check.

USER: Ok.

ASSISTANT: Sorry Nicholas Turner, no flights are available as per your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.