You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I want to book a flight ticket to Los Angeles to visit live music concert. Please help me with a connecting flight.

ASSISTANT: Sure, is there any fare limit?

USER: I need the ticket under price 5000.

ASSISTANT: Help me with your travel dates?

USER:  My travelling dates are from 03/03 to 03/05.

ASSISTANT: Kindly provide your boarding and landing airport codes?

USER: I want to fly from OAK to LAX.

ASSISTANT: Let me have your name?

USER: I am Kathleen Collins.

ASSISTANT: I found a flight from an UA airline of fare 100 and flight number 1019. Shall I proceed?

USER: Please go ahead.

ASSISTANT: Your flight has been reserved.

USER: Thank you.

ASSISTANT: Thanks for choosing us.