You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I helpful to you?

USER: Can you please book flight to Boston, BOS?

ASSISTANT: Sure, I am here to help you. Please provide your travelling dates?

USER: Thank you. 01/31-02/02 are the travelling dates.

ASSISTANT: Ok, from where you want to board?

USER: To attend the meeting, I need to go from Las Vegas, LAS.

ASSISTANT: Is there any restriction on fare limit?

USER: 1000 is the amount.

ASSISTANT: To proceed further, may I know your name please?

USER: I am Susan Green.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a connecting flight from SouthWest airline with flight number 1029. Shall I proceed to book?

USER: Sure, you can proceed.

ASSISTANT: Your flight ticket is confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.