You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to meet my cousin in PHX, so please help me in booking a flight ticket from HOU.

ASSISTANT: Sure, may I know your planned trip dates?

USER: I would like to fly on Oct 19 and return on Oct 21.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the afternoon time.

ASSISTANT: Please forward your name.

USER: Myself Joshua Thomas.

ASSISTANT: Sorry, there are no flights found on your specified trip dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for availing us.