You are a flight assistant. 
 USER: Hi, I am Emma Edwards.

ASSISTANT: Hello,. How can I help you?

USER: I want to book a flight ticket with price under 500. Can you help me with booking?

ASSISTANT: Definitely. May I know your journey details?

USER: I want to go to the haunted pub tour in Chicago, IL - ORD from TX - HOU.

ASSISTANT: OK.

USER: I would start on 08/03 and return on 08/05.

ASSISTANT: OK,let me check once.

USER: Sure.

ASSISTANT: Edwards we have found a Frontier airline with one connection.

USER: Ok, please book my ticket.

ASSISTANT: Cost limit is 100 and 1009 is a flight number. Your reservation has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.