You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel White.

ASSISTANT: How can I assist you today?

USER: I would like to travel from PHL to IAH, can you help me to book a flight ticket?

ASSISTANT: Sure, can you please share your travel dates?

USER: My preferable journey dates are Oct 06 and Oct 08.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: My connection limit is 1.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I would like to depart in the morning.

ASSISTANT: Samuel White, I am sorry to inform you that there is no flight available at your request.

USER: No problem, thank you for the information.

ASSISTANT: You are welcome. Thank you for contacting us.