You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Mark Martinez, planning to OAK to meet my grand mother. So, can you book a ticket?

ASSISTANT: Sure, we are happy to help you. Kindly share your airport codes?

USER: Ok. My source is OAK, and destination is DFW.

ASSISTANT: Please provide your journey dates?

USER: I will travel on 02/01 to 02/03.

ASSISTANT: May I know your price limit?

USER: Price limit I can afford is 200.

ASSISTANT: Please wait a while.

USER: Connection is one.

ASSISTANT: Thanks for your time.

USER: Ok.

ASSISTANT: We found a flight with Delta airlines and flight number is 1015 which matches your details. Shall I reserve this?

USER: Sure, you can proceed to book.

ASSISTANT: Your ticket has been confirmed.

USER: Thank You, for confirming my ticket.

ASSISTANT: Thank you for choosing our service. Have a safe journey.