You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you?

USER: As its business trip, please book a ticket from Houston, TX-HOU to Charlotte, NC-CLT.

ASSISTANT: Sure, please provide me your preferable dates to travel.

USER: My travel dates are from 01/18 to 01/20.

ASSISTANT: Can I have your name please?

USER: My name is Jerry Hill.

ASSISTANT: Jerry, do you have any price limit?

USER: Price limit is 200.

ASSISTANT: Ok, please give me a moment to check the availability.

USER: Sure.

ASSISTANT: There is a Delta airline with fare 200 from flight number 1026 which is exactly matching your details. Shall I proceed with a connecting flight?

USER: Please proceed to book a ticket.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks.

ASSISTANT: Thank you for choosing us.