You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Lewis.

ASSISTANT: How can I help you?

USER: I need to attend a dance competition at Houston, can you please help me to book a flight ticket from ORD to IAH?

ASSISTANT: Can I know your travelling dates?

USER: Sure, my itinerary dates are Aug 17 and Aug 19. My departing time is evening.

ASSISTANT: Connecting flight can be booked with airline Delta for price 300 having flight number 1016. Shall I book a ticket?

USER: That's fine, please proceed for further.

ASSISTANT: Ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thanks.