You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: I need to reserve a ticket from LAX to IAD, can you help me?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: Can you please let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: In which class you preferred to travel in your journey?

USER: I am comfortable with business class.

ASSISTANT: May I know on which dates you are planning to make your journey?

USER: My journey dates are Sep 15 to 17.

ASSISTANT: May I know any specific timings of  depart and arrival?

USER: I am ok with any time.

ASSISTANT: Is there any more requirements do you need?

USER: I prefer for normal-cost airline. please check with that.

ASSISTANT: Before check with the airlines, may I know your good name please?

USER: I am Sharon Martinez.

ASSISTANT: Ok, please be on hold for some time.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights are available matching your requirements.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting our services, we hope to serve you again. Have a nice day.