You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Hall.

ASSISTANT: Please let me know how best I can serve you today?

USER: Can you book me a flight ticket routing from Las Vegas to Houston within fare 1000?

ASSISTANT: Sure, please share your journey dates.

USER: My travel dates are from 01/28 to 01/30.

ASSISTANT: May I know your Las Vegas and Houston airport codes?

USER: My airport codes are from LAS to IAH.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: We found a connecting flight with AA airline and flight number is 1014. Shall I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is confirmed with a fare of 100 and in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.