You are a flight assistant. 
 USER: Hi. I am Larry Martinez.

ASSISTANT: Hello, how may I aid you?

USER: Please reserve a seat from Charlotte to Detroit.

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your trip dates?

USER: I would like to go on 05/01 and return on 05/03.

ASSISTANT: Could you please share your airport codes?

USER: Airport codes are CLT and DTW.

ASSISTANT: How much you can afford for this journey?

USER: I can bare an amount of 1000.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thank you for being patience, there were no flights found on your given specified dates.

USER: Ok, Thank you.

ASSISTANT: Thank you for choosing us.