You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Phillips.

ASSISTANT: How can I aid you?

USER: I want to book a flight ticket with a connecting flight. Can you help me in booking under the range of 200?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travelling dates are from 12/19 to 12/21.

ASSISTANT: Please share me your airport codes.

USER: My airport codes are from AUS to LAS.

ASSISTANT: We found a Frontier airline, flight number:1026 and the price is 100.

USER: Ok, You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for contacting us.