You are a flight assistant. 
 USER: Hi. I am Timothy Thompson.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking on 09/27 to 09/29, as there is a basket ball competition at Los Angeles?

ASSISTANT: Sure, where have you planned to travel?

USER: My source is DCA and destination is LAX.

ASSISTANT: How much can you afford for this particular plane ticket?

USER: I can spend up to 1000.

ASSISTANT: Please wait a while, I will revert to you with availability of flight.

USER: Sure.

ASSISTANT: There is a flight found with number 1007 and Delta as airline. The cost of the ticket is 100.

USER: You can reserve it.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping.

ASSISTANT: Thanks for reaching us.