You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I serve you?

USER: I'm Brenda Gonzalez want to attend my sister-in-law's marriage, can you book a ticket from DCA to MSP?

ASSISTANT: Sure, can you provide me the journey dates?

USER: Yes, my travel dates are 02/05 and 02/07.

ASSISTANT: Give me a minute, I will check with it.

USER: Ok.

ASSISTANT: Thank you for waiting . Sorry for inconvenience, there is no flight matching your details. Thank you for your valuable time. Have a great day.

USER: Thank you.