You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Jacob Roberts here, I would like to attend my sports events was going on IAH, so can you help me booking flight on 08/08?

ASSISTANT: Sure, may I know your source airport code please?

USER: I am going to return my source airport code MSP on 08/10.

ASSISTANT: Please give me a minute.

USER: Ok, I will wait for your reply.

ASSISTANT: Jacob, there are no flights available on your preferred journey dates.

USER: Oh! That's really sad to hear, anyway thank you for your services.

ASSISTANT: Thank you for choosing us, have a good day.