You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Donald Davis, I planned a trip to Houston to meet my friend. Can you help me with booking with a halt?

ASSISTANT: Sure, may I know your travel dates?

USER: I will travel on 08/14 and return on 08/16.

ASSISTANT: Please share me your airport codes.

USER: My source point is Oakland, CA-OAK and destination is TX-IAH.

ASSISTANT: Do you have any specification?

USER: My budget for flight ticket is 5000.

ASSISTANT: We found a flight on your details with airline Southwest, flight number: 1026. Shall I proceed for booking?

USER: Sure.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us.