You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Edward Green want to visit Chicago, can you book a ticket with price under 1000?

ASSISTANT: Sure, can you help me with your travelling dates?

USER: Sure, my travelling dates will be 02/12 and 02/14.

ASSISTANT: Let me know your airport codes to search a flight?

USER: Yes, I want to fly from HOU to ORD.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a connecting flight-1006 of Delta airlines, shall I proceed?

USER: Yes, proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.