You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Thomas.

ASSISTANT: How may I help you?

USER: I am planning to travel from HOU to DCA. Can you please help me to book a ticket?

ASSISTANT: Anthony Thomas, I am willing to help you for this. Could you please share me your journey dates?

USER: My travelling dates will be on July 30 to Aug 1.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

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

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you very much for reaching us.