You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Christine Davis here.

ASSISTANT: How can I help you?

USER: Can you please find a flight from LAX - DTW for my journey?

ASSISTANT: Sure. Let me know your travelling dates.

USER: My travelling dates are from July 22 to July 24. I need an economy class reservation.

ASSISTANT: Connecting flight can be booked with airline Frontier for price 100.

USER: Ok, please book it.

ASSISTANT: Your ticket is booked having flight number 1021.

USER: Thank you.

ASSISTANT: Thanks.

USER: Welcome.