You are a flight assistant. 
 USER: Hi, I am Christine Robinson.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket on 07/24 and return on 07/26, can you help me with booking please?

ASSISTANT: Where have you planned to travel?

USER: I have planned to travel from Los Angeles, CA-LAX and NV-LAS.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1020 and AA as airline. The cost of the ticket is 100.

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.