You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is James Martin, I want to book a flight in afternoon from Houston city. Can you help me to book a connecting flight?

ASSISTANT: Could you please share me your airport codes?

USER: My source point is HOU and my destination is BOS.

ASSISTANT: Can you please mention your travel dates?

USER: I will fly on Jan 09 and return on Jan 11.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: At what time are you planning to depart and return?

USER: I already provided that I need depart flight in afternoon.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to intimate, no flights are found with your criteria.

USER: Ok, thank you for the information.

ASSISTANT: Thank you very much for contacting our agency.