You are a flight assistant. 
 USER: Hello, Mary Clark here.

ASSISTANT: Hello, how may I assist you?

USER: I am a stand up comedian, I need to host a show in Oakland. Could you book my ticket from HOU to OAK?

ASSISTANT: Sure, what dates would you like to travel?

USER: My itinerary dates are 06/18 and 06/20.

ASSISTANT: Ok, may I know your price limit to proceed further?

USER: I can afford 200 for my ticket.

ASSISTANT: Sorry, I regret to say that there were no flights matching your provided details.

USER: No problem, I will find an another way to travel.

ASSISTANT: Ok, thank you for reaching us. Have a good day.

USER: Thank you for the information.