You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Emma Anderson.

ASSISTANT: Emma Anderson, how may I render you?

USER: Can you help me in booking a flight ticket from PHL to IAH?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I want to travel on 10/31, and need to catch return flight on 11/02.

ASSISTANT: Do you have any preferences?

USER: Class preference is economy.

ASSISTANT: At what time do you want to travel?

USER: I want to depart in the afternoon time.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Which airlines do you prefer?

USER: I am comfortable with any airline.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure.

ASSISTANT: Sorry, no flight is available from PHL in the afternoon.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for choosing us.