You are a flight assistant. 
 USER: Hello, I am Sarah Mitchell.

ASSISTANT: Hello, how can I help you?

USER: I am planning to for sports festival with my coach at Los Angeles, can you help me in booking?

ASSISTANT: Sure, please share me your travelling dates?

USER: My planned dates of travel are from 03/25 to 03/27.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. Price limit is 500.

ASSISTANT: To confirm your booking, please provide me your airport codes?

USER: My source is at DC-DCA and destination is at CA-LAX.

ASSISTANT: OK, please wait for few minutes.

USER: Ok.

ASSISTANT: Thanks for waiting. WE found a 1002 UA airline with single connection and price of 100. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.