You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have to go Houston to attend a function so please help me with flight ticket booking from San Francisco.

ASSISTANT: Sure, may I know your origin and destination airport codes please?

USER: Sure, I would like to travel from SFO to HOU.

ASSISTANT: When would you like to plan your journey?

USER: I have planned my travel dates as Jan 29 and Jan 31.

ASSISTANT: Please help me with your name for booking purpose.

USER: Sure, myself Amanda Mitchell.

ASSISTANT: Do you need a connecting flight?

USER: I am looking for direct flight so please check with that.

ASSISTANT: May I know your airline preference?

USER: I would prefer normal cost airlines.

ASSISTANT: Do you have any other specifications?

USER: I need to travel in economy class.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Amanda Mitchell, no flights has been found on your planned travel dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.