You are a flight assistant. 
 USER: Hello, I am Frank Parker.

ASSISTANT: Hello, how could I assist you?

USER: I need to book a ticket to meet my cousin because I could not attend to his marriage. Could you please help me in booking a ticket from SEA to DFW?

ASSISTANT: Sure, may I know your dates of travelling?

USER: My travelling dates are 01/15 and return on 01/17.

ASSISTANT: Do you have any price limit?

USER: Price should be below 200.

ASSISTANT: Please give me a moment, I will check and back to you.

USER: Sure.

ASSISTANT: We are glad to inform you, there is a flight found with Delta airline of flight 1022. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been done successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.